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    Airlines Hoping for More Boeing Jets Could Be Waiting Awhile

    The Federal Aviation Administration’s decision to limit Boeing’s production of 737 Max planes could hurt airlines that are struggling to buy enough new aircraft.Boeing hoped 2024 would be the year it would significantly increase production of its popular Max jets. But less than a month into the year, the company is struggling to reassure airline customers that it will still be able to deliver on its promises.That’s because the Federal Aviation Administration said on Wednesday that it would limit the plane maker’s output until it was confident in Boeing’s quality control practices. On Jan. 5, a panel blew off a Boeing 737 Max 9 body shortly after takeoff, terrifying passengers on an Alaska Airlines flight and forcing the pilots to make an emergency landing at Portland International Airport in Oregon. Almost immediately, the F.A.A. grounded some Max 9s.Since then, details have emerged about the jet’s production at Boeing’s facility in Renton, Wash., that have intensified scrutiny of the company’s quality control. Boeing workers opened and then reinstalled the panel about a month before the plane was delivered to Alaska Airlines.The directive is another setback for Boeing, which had been planning to increase production of its Max plane series to more than 500 this year, from about 400 last year. It also planned to add another assembly line at a factory in Everett, Wash., a major Boeing production hub north of Seattle.As part of the F.A.A.’s announcement on Wednesday, it also approved inspection and maintenance procedures for the Max 9. Airlines can return the jets to service once they have followed those instructions. United Airlines said on Thursday that it could resume flying some of those planes as soon as Friday.The move is another potential blow to airlines. Even though demand for flights came roaring back after pandemic lockdowns and travel restrictions eased, the airlines have not been able to take full advantage of that demand. The companies have not been able to buy enough planes or hire enough pilots, flight attendants and other workers they need to operate flights. A surge in the cost of jet fuel after Russia invaded Ukraine also hurt profits.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber?  More

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    Southwest Airlines Reaches Deal With Pilots Union

    The new contract would provide raises and better benefits, following similar deals at other big airlines.Southwest Airlines and its pilots union have reached a tentative deal on a new, five-year labor contract that would raise wages 50 percent over the next several years and increase retirement benefits.The union’s board unanimously approved the deal, which it said was worth $12 billion, on Wednesday, sending it to the more than 11,000 union members, who have until Jan. 22 to cast a vote.The deal would provide benefits that are similar to those secured by pilots unions at the three other large U.S. airlines in separate negotiations this year. Pilots have had the upper hand in labor talks because they are in high demand amid the strong recovery in air travel after a steep decline in the early part of the pandemic.Capt. Casey Murray, the president of the union, the Southwest Airlines Pilots Association, said that the airline had started to lag behind its peers in attracting and keeping pilots in recent years. “What this contract was about was closing that gap so that we could recruit and retain competitively,” he said in an interview.Southwest welcomed the deal. In a statement, Adam Carlisle, vice president of labor relations for the company, said that the agreement would deliver “industry-leading” pay rates.Relations between Southwest and the union have been contentious at times. In 2021, the union sued the airline over changes made by management during the pandemic. Last year, the company and union entered federal mediation over contract talks. In May, Southwest’s pilots voted to approve a strike for the first time in the company’s history, according to the union, though federal law prohibits pilots from walking off the job without first pursuing mediation and other steps.Other pilots unions have achieved big gains. In March, pilots at Delta Air Lines approved a contract that would boost wages 34 percent over several years. Pilots at American Airlines this summer approved a contract that grants them a 46 percent raise, and pilots at United Airlines approved a 40 percent pay increase.All three contracts included improvements to vacation and retirement benefits and greater protections against last-minute reassignments. Southwest’s deal will include similar improvements. The new contracts at the big airlines have also increased pressure on smaller carriers to improve pay and benefits to keep pilots from leaving for larger employers.Pilots at big airlines easily earn six-figure salaries. The most senior pilots, who typically fly larger planes on longer routes, can earn several hundred thousand dollars a year. Labor and fuel account for about half of airlines’ operating expenses. In recent months, airline executives have warned that such costs could push down their profits.If approved, the new Southwest deal would extend through December 2028. The contracts at Delta, American and United are all in effect through at least 2026.There is no guarantee that Southwest’s pilots will approve the deal. The airline’s flight attendants rejected a deal this month, sending negotiators back to the table. Flight attendants at American and United are also negotiating new contracts. More

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    Wages and Hiring Weigh on Minds of Company Executives

    As companies reported their latest quarterly earnings in recent weeks, hiring, wages and head counts were popular topics as analysts quizzed executives about their plans.Some said they were avoiding expanding their payrolls as rapidly as in the past. Others said that rising wages remained a worry for their bottom lines. And many still looking to hire said that attracting and retaining workers was difficult as the labor market remained robust.“You have to work extra to hire people and to keep people,” Andrew Watterson, the chief operating officer of Southwest Airlines, said on a call with analysts. “Our clients still grapple with labor shortages,” said Martine Ferland, who runs the consultancy Mercer.Even so, the rate of workers quitting their jobs, a measure of workers’ confidence in their prospects and bargaining power, continued to fall in June, according to data released Tuesday. “If you think about our turnover coming down, that means we don’t have as many people we’re hiring as we were before,” said Rick Cardenas, the chief executive of Darden Restaurants, owner of the Olive Garden chain.Wage growth has also cooled in recent months, but remained robust last month, rising 4.4 percent from a year earlier. “We still face above normal levels of wage and benefit cost inflation in our cost structure,” Andre Schulten, the finance chief at the consumer goods company Procter & Gamble, said on a call with analysts.Kathryn A. Mikells, the chief financial officer of Exxon Mobil, said that the oil giant had seen lower prices for some of its materials like chemicals and sand, but “as it relates to things where labor is a high component of the cost, I would say we’re not yet necessarily seeing that deflationary pressure coming through yet.”Anthony Wood, the chief executive of Roku, the streaming device maker, told analysts that the company would continue hiring, but planned to do so outside of the United States, in places where workers “are just less expensive than Silicon Valley engineers.”Other companies, especially in the tech industry, said that they had become more judicious about hiring, with some freezing payrolls or even cutting jobs.Mark Zuckerberg of Meta, which cut tens of thousands of jobs in multiple rounds of layoffs since late last year, said last week that “newly budgeted head count growth is going to be relatively low” at the company, which owns Facebook, Instagram and WhatsApp. Sundar Pichai of Alphabet said that the tech giant would “continue to slow our expense growth and pace of hiring.” More

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    Southwest CEO Bob Jordan Faces a Giant Crisis, 10 Months Into the Job

    Bob Jordan, the airline’s top executive, heralded the company’s performance just weeks before the storm highlighted gaping weaknesses in its operations.After Southwest Airlines made it through Thanksgiving with few flight cancellations, Bob Jordan, the company’s chief executive, was in a celebratory mood. At a meeting with Wall Street analysts and investors this month at the New York Stock Exchange, he said the company’s performance had been “just incredible.”But a few weeks later, over the Christmas holiday, Southwest’s operations went into paralysis, forcing the company to resort to mass cancellations. The debacle has raised questions about Mr. Jordan’s performance and has prompted employees and analysts to ask why the company has been slow to fix well-known weaknesses in its operations.Other airlines fared far better during the extreme cold weather over Christmas weekend than Southwest, which after days of disruption canceled more than 2,500 flights on Wednesday, vastly more than any other U.S. airline, according to FlightAware, a flight tracking service. The airline has already canceled more than 2,300, or 58 percent, of its flights planned for Thursday.Travelers, lawmakers and even employees are increasingly demanding answers from Southwest and Mr. Jordan. While the company has repeatedly apologized for its performance, it has provided few details about how things went so wrong and what it is doing to right its operations. The company said on Wednesday that Mr. Jordan and other executives were not available for interviews.Mr. Jordan implied on Tuesday that the airline was caught out by a low-probability event after many delays and cancellations.Christopher Goodney/BloombergIn a video posted on Southwest’s website late Tuesday, Mr. Jordan, who became chief executive in February after three decades at Southwest, implied that the airline was caught out by a rare event. “The tools we use to recover from disruption serve us well 99 percent of the time,” he said, “but clearly we need to double down on our already existing plans to upgrade systems for these extreme circumstances.”Southwest has known for years that computer systems that manage customer reservations and assign pilots and flight attendants to each flight needed improvements. Union leaders and even the company’s executives have acknowledged that the systems struggle to handle large numbers of changes when the company’s operations are disrupted.Disruptions can have a cascading effect on Southwest’s flights because it operates a point-to-point system, in which planes travel from one destination to another; other large airlines use the hub-and-spoke system, with flights typically returning frequently to a hub airport.Southwest is now trying to piece together its operations after many of its crews and planes were not where they were scheduled to be because of earlier flight cancellations, the company said in an emailed statement to The New York Times. Because the company’s operations have been so thoroughly upended, the effort is expected to take days. To get crews and planes in the right places, Southwest had to reduce its schedule. This should allow the airline to bring crews to the airports where they are needed.In his video on Tuesday, Mr. Jordan appeared to acknowledge that Southwest’s model was susceptible to breaking down under stress. “Our network is highly complex, and the operation of the airline counts on all the pieces, especially aircraft and crews remaining in motion to where they’re planned to go,” he said.Many travelers have expressed frustration with Southwest, saying it has become impossible to get information from the company.Emil Lippe for The New York TimesThe company has spent years trying to overhaul its technology systems, but this latest crisis is expected to ratchet up the pressure on Southwest and Mr. Jordan to make progress faster.Union leaders said they had run out of patience with how the company had been updating the technology systems.Labor Organizing and Union DrivesU.K.’s ‘Winter of Discontent’: As Britain grapples with inflation and a recession, labor unrest has proliferated, with nurses, railway workers and others leading job actions across the country.Starbucks: The union organizing Starbucks workers declared a strike at dozens of stores, the latest escalation in its campaign to secure a labor contract.Education: The University of California and academic workers announced a tentative labor agreement, signaling a potential end to a high-profile strike that has disrupted the system for more than a month.Electric Vehicles: In a milestone for the sector, employees at an E.V. battery plant in Ohio voted to join the United Automobile Workers union, citing pay and safety issues as key reasons.“We’re at the point where we’ve given him enough grace,” Michael Santoro, vice president of the Southwest Airlines Pilots Association, said in an interview, referring to Mr. Jordan.Transport Workers Union Local 556, which represents Southwest’s flight attendants, issued a statement agreeing with the pilots. “It is not weather; it is not staffing; it is not a concerted labor effort; it is the complete failure of Southwest Airlines’ executive leadership. It is their decision to continue to expand and grow without the technology needed to handle it,” the union’s president, Lyn Montgomery, said.These statements stand out because Southwest has generally had very good relations with most of its labor unions. After the meltdown, labor leaders have grown increasingly critical of the company this week. The pilots group, for example, expressed frustration that the company had not yet shared its plan for getting its operation back to normal, something it typically does after disruptions. “We have heard zero,” Mr. Santoro said.Southwest Airlines staff members helped customers at Dallas Love Field Airport on Tuesday.Emil Lippe for The New York TimesIn the last few days, union officials, pilots and flight attendants have complained to journalists and on social media that crew members have often had to wait hours to be assigned to their next flight or be directed to hotels where they could spend the night.Customers have also expressed intense frustration with the airline, saying it had become impossible to get any information from the company. Some people have said they waited hours at baggage and ticket counters and gates to speak to Southwest agents. Others have tried and failed to get through to the company by phone or online.Howard Tutt came to Chicago’s Midway airport on Wednesday to try to retrieve a bag his son had checked for a flight to California that was ultimately canceled. He said he had waited hours with other customers to speak to someone to no avail. Nearby, dozens of bags were waiting to be reunited with travelers outside Southwest’s baggage office and near its carousels.“He had to leave in the middle of Christmas dinner because they told him the only flight he could get on was at 9 p.m. on the 25th,” Mr. Tutt, 61, said, referring to his son. “Then he got to the airport, checked his bags and was delayed for six hours before they canceled the flight.”Mr. Tutt, a resident of Orland Park, Ill., said the family had tried a variety of approaches to locate the bag, which contains Christmas gifts for his son’s girlfriend and her family. “We’ve emailed, tried via chat message, and called but cannot reach anyone.”Analysts said that, as cancellations piled up, Southwest found itself in a dire position in which it needed to almost start from scratch to rebuild. “You’ve lost control of what you expected the operation to be,” said Samuel Engel, a senior vice president and airline industry analyst at ICF, a consulting firm.The question that will loom over the company for a long time is why Southwest’s system broke down while those of other large airlines held up relatively well. Analysts say Southwest’s point-to-point network, which is quite different from the hub-and-spoke system used by its peers, made it harder to restart operations.But they also say Southwest’s technology, despite yearslong efforts to modernize it, was lacking. And Mr. Jordan is likely to be asked why he didn’t do more to make the systems strong enough to deal with weather and technology disruptions, which have dogged Southwest in recent years, including two mass flight cancellations and delays last year.Though Mr. Jordan has been chief executive for a short time, he has long been a member of Southwest’s senior leadership team, which would have given him plenty of opportunity to understand the company’s strengths and weaknesses. He started at the company as a computer programmer, helped develop its frequent flier program and aided in incorporating the planes and crews of AirTran Airways after Southwest acquired that company.Robert W. Mann Jr., a former airline executive who now runs the consulting firm R.W. Mann & Company, said Mr. Jordan was “in the hot seat right now.”But analysts were skeptical that Southwest could change quickly. They say the company’s management suffers from “Southwest exceptionalism,” or a stubborn belief that its unique approach to running an airline is best. Even though Southwest has it origins as an upstart taking on sleepy incumbents, analysts say its decision making can move at glacial speeds. “The airline has always been very cautious about change,” Mr. Engel said.Southwest’s approach works well much of the time, and it has contributed to the company’s strong financial performance over the last five decades, analysts say. It allowed, for instance, for planes to be used more quickly for their next flight. Longtime shareholders have done well. Southwest’s stock is up 217 percent over the last decade, outpacing the wider stock market and its best-performing rivals. But this month, Southwest’s stock, down by nearly a fifth, has performed worse than the market and its peers.There is no evidence that Mr. Jordan is vulnerable. But poor crisis management has severely weakened other airline executives.In February 2007 JetBlue experienced a meltdown when the airline did not act as quickly as its peers to cancel flights, hoping an ice storm on the East Coast would not have affected air travel as much as it did. At one point, nine JetBlue planes filled with passengers sat on the tarmac at Kennedy International Airport for six hours.David G. Neeleman, JetBlue’s founder and chief executive at the time, who was also a former Southwest executive, said he was “humiliated and mortified.” Months later, he agreed to step down as chief executive.Mr. Neeleman did not respond to requests for comment.Robert Chiarito More

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    Thanksgiving Holiday Travel Will Test Airlines

    Widespread flight cancellations. Excruciating waits for customer service. Unruly passengers.And that was all before the holiday travel season.Even in normal times, the days around Thanksgiving are a delicate period for the airlines. But this week is the industry’s biggest test since the pandemic began, as millions more Americans — emboldened by vaccinations and reluctant to spend another holiday alone — are expected to take to the skies than during last year’s holidays.A lot is riding on the carriers’ ability to pull it off smoothly.“For many people, this will be the first time they’ve gotten together with family, maybe in a year, year and a half, maybe longer, so it’s very significant,” said Kathleen Bangs, a former commercial pilot who is a spokeswoman for FlightAware, an aviation data provider. “If it goes poorly, that’s when people might rethink travel plans for Christmas. And that’s what the airlines don’t want.”The Transportation Security Administration said it expected to screen about 20 million passengers at airports in the 10 days that began Friday, a figure approaching prepandemic levels. Two million passed through checkpoints on Saturday alone, about twice as many as on the Saturday before last Thanksgiving.Delta Air Lines and United Airlines both said they expected to fly only about 12 percent fewer passengers than they did in 2019. And United said it expected the Sunday after Thanksgiving to be its busiest day since the pandemic began 20 months ago. Many Thanksgiving travelers seem to be going about their travel routines as usual, with some now-familiar pandemic twists.“Airports are busy right now, and everything seems back to normal,” said Naveen Gunendran, 22, a University of Illinois student who was flying on United from Chicago to San Francisco on Saturday to visit relatives. “But we’re all packed together, and we just have to hope everybody is being safe.”The pent-up travel demand has elevated the cost of tickets. Hopper, an app that predicts flight prices, said that the average domestic flight during Thanksgiving week was on track to be about $293 round-trip this year, $48 more than last year — although $42 cheaper than in 2019.While the industry is projecting optimism about easy traveling, the influx of passengers has injected an element of uncertainty into a fragile system still reeling from the pandemic’s devastation. Some airlines have experienced recent troubles that rippled for days — stymying travel plans for thousands of passengers — as the carriers struggled to get pilots and flight attendants in place for delayed and rescheduled flights, a task complicated by thin staffing.“We’ve said numerous times: The pandemic is unprecedented and extremely complex — it was messy going into it, and it’s messy as we fight to emerge from it,” the president and chief operating officer of Southwest Airlines, Mike Van de Ven, said in a lengthy note to customers last month.His apology came after Southwest canceled nearly 2,500 flights over a four-day stretch — nearly 18 percent of its scheduled flights, according to FlightAware — as a brief bout of bad weather and an equally short-lived air traffic control staffing shortage snowballed.Weeks later, American Airlines suffered a similar collapse, canceling more than 2,300 flights in four days — nearly 23 percent of its schedule — after heavy winds slowed operations at Dallas-Fort Worth International Airport, its largest hub.American and Southwest have said they are working to address the problems, offering bonuses to encourage employees to work throughout the holiday period, stepping up hiring and pruning ambitious flight plans.Sara Nelson, president of the Association of Flight Attendants, a union representing roughly 50,000 flight attendants at 17 airlines, gave the carriers good marks for their preparations.“First and foremost, we are getting demand back after the biggest crisis aviation has ever faced,” she said.“I think there has been a lot of good planning,” she added. “And barring a major weather event, I think that the airlines are going to be able to handle the demand.”According to FlightAware, just 0.4 percent of flights were canceled on Sunday, which the T.S.A. said was nearly as busy as the Sunday before Thanksgiving in 2019.Thanksgiving travel will be a major test of whether the airline industry is ready to return to normal operations.DeSean McClinton-Holland for The New York TimesTravelers at La Guardia Airport in New York on Sunday. Some got away earlier than usual because of the flexibility of doing jobs or taking classes remotely.DeSean McClinton-Holland for The New York TimesMajor airlines have just started to report profits again, and only after factoring in billions of dollars of federal aid. While the aid allowed carriers to avoid sweeping layoffs during the pandemic, tens of thousands of employees took generous buyouts or early-retirement packages or volunteered to take extended leaves of absence.That has made ramping back up more difficult, and the pandemic has created new challenges. Flight crews have had to contend with overwork and disruptive and belligerent passengers, leaving them drained and afraid for their safety.Helene Albert, 54, a longtime flight attendant for American Airlines, said she took an 18-month leave by choice that was offered because of the pandemic. When she returned to work on Nov. 1 on domestic routes, she said, she saw a difference in passengers from when she began her leave.“People are hostile,” she said. “They don’t know how to wear masks and they act shocked when I tell them we don’t have alcohol on our flights anymore.”The number of such unruly passengers has fallen since the Federal Aviation Administration cracked down on the behavior earlier this year. But the agency has so far begun investigations into 991 episodes involving passenger misbehavior in 2021, more than in the last seven years combined. In some cases, the disruptions have forced flights to be delayed or even diverted — an additional strain on air traffic.Dallas-Fort Worth International Airport on Saturday.Cooper Neill for The New York TimesLayered on top of the industry’s struggles during the holiday season is the perennial threat of inclement weather. Forecasters have cautioned in recent days that gathering storm systems were threatening to deliver gusty winds and rain that could interfere with flights, but for the most part, the weather is not expected to cause major disruptions.“Overall, the news is pretty good in terms of the weather in general across the country cooperating with travel,” said Jon Porter, the chief meteorologist for AccuWeather. “We’re not dealing with any big storms across the country, and in many places the weather will be quite favorable for travel.”Even so, AAA, the travel services organization, recommended that airline passengers arrive two hours ahead of departure for domestic flights and three hours ahead for international destinations during the Thanksgiving travel wave.Some lawmakers warned that a Monday vaccination deadline for all federal employees could disrupt T.S.A. staffing at airports, resulting in long lines at security checkpoints, but the agency said those concerns were unfounded.The influx of passengers has added uncertainty to a system still reeling from the pandemic. Christopher Lee for The New York TimesMajor airlines have just started to report profits again, and only after factoring in billions of dollars of federal aid.Christopher Lee for The New York Times“The compliance rate is very high, and we do not anticipate any disruptions because of the vaccination requirements,” R. Carter Langston, a T.S.A. spokesman, said in a statement on Friday. With many people able to do their jobs or classes remotely, some travelers left town early, front-running what are typically the busiest travel days before the holiday.TripIt, a travel app that organizes itineraries, said 33 percent of holiday travelers booked Thanksgiving flights for last Friday and Saturday, according to its reservation data. (That number was slightly down from last year, when 35 percent of travelers left on the Friday and Saturday before Thanksgiving, and marginally higher than in 2019, when 30 percent of travelers did so, TripIt said.)Among those taking advantage of the flexibility was Emilia Lam, 18, a student at New York University who traveled home to Houston on Saturday. She is doing her classes this week remotely, she said, and planned her early getaway to get ahead of the crush. “The flights are going to be way more crowded,” she said, as Thursday approaches.Robert Chiarito and Maria Jimenez Moya contributed reporting. More

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    Airlines See a Surge in Domestic Flights, Beating Forecasts

    U.S. carriers are reaping the rewards as a surge in domestic air travel has exceeded forecasts.The aviation recovery is gaining momentum.A summer travel bonanza is exceeding expectations, helping airlines earn profits again and brightening the outlook for the rest of the year. It’s a welcome relief for a battered industry and a sign that the rebound that began this spring appears to be here to stay.The economic upturn, aggressive cost-cutting and an enormous federal stimulus that paid many salaries have helped to improve the finances of the largest carriers, which took on vast amounts of debt and lost billions of dollars during the pandemic.This month, consumer spending on airlines briefly exceeded 2019 levels on a weekly basis for the first time since the pandemic began, according to Facteus, a research firm that monitors millions of online payments. Ticket prices have rebounded, too: In June, fares were down only 1 percent from the same month in 2019, according to the Adobe Digital Economy Index, which is similarly based on website visits and transactions.And on Sunday, the Transportation Security Administration screened more than 2.2 million travelers at its airport checkpoints, the most in one day since the start of the pandemic.“As people have gotten vaccinated and things have reopened, the demand is just very, very strong — and I think, in general, it’s stronger than people thought it would be,” said Helane Becker, an airline analyst at the investment bank Cowen. “People have money and time, and they’re using it to travel.”A full recovery rests on the return of two pillars of the business, corporate and international travel, but executives said they expected both to improve meaningfully over the coming months. And while the Delta variant of the coronavirus could still threaten the travel rebound, customers are so far undeterred.“We haven’t seen any impact at all on bookings,” Scott Kirby, the chief executive of United Airlines, said this week on a call to discuss quarterly financial results with analysts and reporters. “The most likely outcome is that the recovery in demand continues largely unabated.”His comments aligned with those of executives at American Airlines and Delta Air Lines, who said on similar calls that they had seen no drop in demand because of the variant. Both Delta and United added that a vast majority of employees and regular customers had received coronavirus vaccines, which appear to provide protection against the variant.The rising demand has prompted hiring across the industry. American said Wednesday that it planned to hire 1,350 pilots by the end of next year, a 50 percent increase over previous plans. Last week, the company announced that it planned to hire hundreds of flight attendants and bring back thousands who volunteered for extended leaves during the pandemic.Southwest Airlines said in June that it would increase its minimum wage to $15 an hour to retain and attract workers, while Delta is in the middle of hiring thousands of employees. United last month announced plans to buy 270 new planes in the coming years, the largest airplane order in its history and one that would create thousands of jobs nationwide.Southwest on Thursday reported a profit of $348 million for the quarter that ended in June, its second profitable quarter since the pandemic began. American reported a $19 million profit over the same period, while Delta last week reported a $652 million profit, a pandemic first for each airline. United this week reported a loss, but projected a return to profitability in the third quarter as its business improved faster than forecast.The financial turnaround has been buoyed by an infusion of $54 billion of federal aid to pay employee salaries over the past year and a half. Without those payments, none of the major airlines would have been able to report profits for the quarter that ended in June. The aid precludes the companies from paying dividends through September 2022.Each airline offered a hopeful outlook for the current quarter. American projected that passenger capacity would be down only 15 to 20 percent from the third quarter of 2019, while United projected a 26 percent decline and Delta forecast a 28 to 30 percent drop. Southwest, which differs from the other three large carriers in that it operates few international flights, said it expected capacity to be comparable to the third quarter of 2019.“We are just really excited about the momentum we’re seeing in the numbers,” Doug Parker, American’s chief executive, told analysts after the company delivered its earnings report.The financial results and forecasts for the rest of the summer are the latest sign of strength in a comeback that has been building for months. But the airlines have vast amounts of debt to repay — American, the most indebted carrier, announced a plan on Thursday to pay down $15 billion by the end of 2025 — and the rebound hasn’t been free of setbacks.Passenger volumes are still down nearly 20 percent from prepandemic levels, and airlines suffered widespread delays and cancellations as passengers returned in droves last month, according to data from FlightAware, a flight tracking company. About 17 percent of Delta’s flights were delayed at least 15 minutes in June, along with more than 20 percent for United, more than 30 percent for American and 40 percent for Southwest.Travelers at Miami International Airport last month. Airlines had many delays and cancellations as passengers returned in droves last month.Saul Martinez for The New York Times“While the rapid ramp-up in June travel demand provided stability to our financial position, it has impacted our operations following a prolonged period of depressed demand,” Southwest’s chief executive, Gary Kelly, acknowledged in a statement on Thursday. “Therefore, we are intensely focused on improving our operations as we restore our network to meet demand.”Carriers have also struggled to get workers in place to meet that demand. American suffered shortages of catering and wheelchair operators last month, while it also accelerated pilot training to bring more than 3,000 back from extended leaves. Last week, Ed Bastian, chief executive of Delta, said the airline had struggled to train new or long-sidelined employees.“It takes a few months, and the demand has come back at such a fast clip,” he said. “It’s taken us all a little bit of time to catch our breath. But we’ll be fully back over the next couple of months.”One form of travel, trips to visit friends or family within the United States, has generally recovered to 2019 levels, with Southwest saying such leisure travel exceeded 2019 levels in June.Surveys show that corporate travelers are increasingly eager to get back on the road this fall, when business travel typically picks up. Nearly two-thirds of companies that suspended business travel in the pandemic expect to bring it back over the next one to three months, according to a recent poll from the Global Business Travel Association, an industry association. If other companies follow Apple’s lead in delaying a return to the office, though, the corporate travel recovery could be held back.Delta said it expected domestic business trips to recover to about 60 percent of 2019 levels by September, up from 40 percent in June. Those figures roughly align with estimates from United.“The demand is recovering even faster than we had hoped domestically,” Mr. Kirby of United said on Wednesday.International travel has slowly started to recover, too, as more countries, particularly in Europe, open up to American travelers who can provide proof of vaccination or a negative coronavirus test. But airlines are lobbying the Biden administration to loosen restrictions in kind, which, they say, will allow the recovery to accelerate.“I think the surge is coming, and just as we’ve seen it on the consumer side, we’re getting ready for it on the business side,” Mr. Bastian of Delta said last week. “Once you open businesses, offices, and you get international markets opened, I think it’s going to be a very good run over the next 12 to 24 months.” More