Southwest Airlines canceled hundreds of flights over the weekend, blaming the woes on air traffic control issues and weather.
The airline canceled more than 1,000 flights in total, or 29% of its schedule, as of 7 p.m. ET Sunday, according to flight tracker FlightAware. That was the highest rate by far of the major U.S. airlines. Next in line was Allegiant, which canceled 6% of its flights. American Airlines canceled 5% of its flights, while Spirit canceled 4% on Sunday, according to the flight tracker. On Saturday, Southwest Airlines canceled more than 800 flights.