Southwest Airlines will stop flying to Chicago O'Hare and Washington Dulles on June 4.
In a statement, the airline said the moves are part of ongoing efforts to refine its network.
"These changes do not represent any significant changes in flight availability for these cities, as we will continue our robust service at Chicago Midway, Baltimore Washington International and Washington Reagan National," it said.
Southwest flies just two routes out of Dulles, to Denver and Phoenix. Nearby BWI is one of its largest stations, with 75 routes this month, and Southwest is also flying 18 routes this month from Reagan National Airport.
This month Southwest is flying 11 routes from O'Hare, Cirium flight schedule data shows. But the carrier has only served Chicago's primary airport since February 2021, instead focusing on Midway on the city's south side. From Midway, Southwest is serving 76 destinations this month, Cirium flight schedule data shows.
Airport changes for Southwest
O'Hare was among 18 airports Southwest entered during the pandemic and it will be the fourth one of those that the carrier pulls out of. In August 2024 it exited from Houston Bush Intercontinental, Syracuse, N.Y., and Bellingham, Wash.
Southwest has also made large cuts in Atlanta over the past 18 months as it has worked to shed flying that is less financially successful.
On the other hand, it has added several destinations, including Anchorage, Ala., Knoxville, Tenn., and St. Maarten and St. Thomas.