Summer getaways are testing the limits of the country’s air travel system as airlines and airports try to restore operations that were decimated by the pandemic.
Nearly 10,000 flights were delayed in the United States on Sunday, as travel surged and airlines contended with bad weather and other disruptions.
Among the nation’s largest airlines, Southwest Airlines had the most delays, with 30 percent of flights running late, according to FlightAware, a flight tracking service. At American Airlines, 25 percent of flights were delayed, compared with 23 percent for United Airlines and 21 percent for Delta Air Lines.
The slowdowns occurred as travel reached new pandemic heights: The Transportation Security Administration screened 2.1 million people at its airport security checkpoints on Sunday, the most since early March 2020.
Several airlines, including Southwest, blamed bad weather for…