Dozens of Southwest Airlines flights canceled at Atlanta airport

ATLANTA — Southwest Airlines canceled hundreds more flights Monday following a weekend of major service disruptions.

According to Flightaware, the carrier has cancelled 348 flights Monday and delayed another 303 flights.

The Dallas-based airline had blamed air traffic control issues and weather for its weekend “operational challenges” that saw over 1,000 cancelled flights on Sunday alone. Southwest Airlines was the only airline to report the issues on that scale.

At least 30 Southwest flights scheduled to take off or land at Atlanta’s Hartsfield-Jackson International Airport have been canceled today. At least 42 flights set to take off from Hartsfield were delayed and another 30 set to land at Hartsfield were also delayed.

Southwest has struggled all summer with high numbers of delayed and canceled flights. In August it announced it was trimming its September schedule by 27 flights a day, or less than 1%, and 162 flights a day, or 4.5% of the schedule, from early October through Nov. 5.

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Last week, Southwest became the latest airline to announce it was imposing a vaccine mandate on its staff. The Dallas-based company said its workers must be fully vaccinated by Dec. 8 in order to remain at the airline. Employees can seek approval to skip the shots due to medical or religious reasons.

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SWAPA, the Southwest Airlines pilots union, said shortly afterwards that while it was not against vaccines, “This announcement and lack of detail only fuels a growing divide that continues to erode the already strained relationship between Southwest Airlines and its Pilots’ Union.”

One analyst said a possible reason for the weekend outages may be a work slowdown by pilots who oppose the mandate. The pilots union denied it was part of a job action.

In premarket trading, shares of Southwest Air slipped 2.6%.

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