Southwest Airlines pulls out of Washington Dulles & Chicago O’Hare airports in network shake-up
March 14, 2026
Southwest Airlines has scheduled its final flights out of Washington Dulles (IAD) and Chicago O’Hare (ORD) Airport. The latest move from the American low-cost carrier signifies the consolidation of its network out of both Washington D.C. and Chicago to airports out of which it already controls the majority of or a large part of the market. This includes Baltimore/Washington Thurgood Marshall (BWI) and Chicago Midway (MDW) airports.
The latest moves will not dramatically change to the carrier’s route network, which is already limited from both airports. As they are not its main operating hubs for the respective cities, the number of passengers that are impacted is minimal. The carrier has offered affected customers the ability to rebook onto Southwest Airlines flights from nearby airports or request a refund.
Southwest’s exit from Chicago also comes as competitors United and American Airlines fight for control over the airport. The Federal Aviation Administration was forced to intervene at the start of this month to settle their intense turf war.
Southwest pulls out of Washington Dulles and Chicago O’Hare
Southwest has scheduled its final flights from Washington Dulles and Chicago O’Hare for 4 June 2026. The move comes as part of “ongoing efforts to refine its network” the carrier said in a statement without clarifying further.
| Airport | Destinations served (current) | Previous destinations |
|---|---|---|
| Washington Dulles (IAD) | Denver, Phoenix | Atlanta, Orlando, Chicago Midway, Las Vegas, Fort Lauderdale, San Diego, Tampa |
| Chicago O’Hare (ORD) | Orlando, Phoenix, Las Vegas, Austin, Nashville, Cancun, Dallas-Love Field, Denver, Fort Lauderdale, Fort Myers, Tampa | Baltimore |
Service to Washington Dulles began in October 2006. The carrier has served many destinations over its time at the airport, though very few have had flights at the same time. Now, it only serves Denver twice-daily and Phoenix once per day.
Its Chicago base is comparatively much bigger. Southwest began flying to O’Hare in 2021, and offers more than 100 weekly flights according to information from aviation analytics firm Cirium this month. In 2024, the carrier shared that it would be reducing its network from both Chicago O’Hare and Atlanta as part of a network optimisation plan.
Southwest is consolidating its Washington & Chicago networks at its core hubs
Rather than operating to several airports serving the same city, the latest move signifies that Southwest is consolidating flights at its more well-established hubs. In Washington D.C., it also flies to Baltimore and convenient Ronald Reagan Washington National Airport (DCA), which is much more accessible from the city.
| Airport | Southwest Airlines’ capacity share* | Notes |
|---|---|---|
| Washington Dulles (IAD) | 1% | United Airlines holds a dominant share of the capacity from IAD (69%). |
| Baltimore/Washington Thurgood Marshall (BWI) | 77% | Southwest is by far the market leader out of BWI. |
| Ronald Reagan Washington National Airport (DCA) | 15% | Southwest is the second-largest carrier out of DCA after American Airlines (which controls 54% of the market). |
| Chicago O’Hare (ORD) | 2% | Combined, American and United control around 80% of the capacity from ORD. |
| Chicago Midway (MDW) | 92% | MDW is one of the airports where Southwest controls almost the entirety of the capacity on offer. |
This month from Baltimore the company will fly over 1400 weekly flights. From DCA, this figure stands at just over 300. In Chicago, the carrier’s control over its Midway hub is quite significant. This month it will offer 1450 weekly flights.
Featured image: Ashlee D. Smith | Southwest Airlines
