Southwest Airlines has spent the past two years trimming its route map out of Baltimore/Washington International Thurgood Marshall Airport (BWI), cutting nine destinations between early 2025 and late 2026, according to aviation data firm Cirium. Yet the airport remains the airline's fortress: this November it accounts for 75% of all BWI flights, with 6,116 scheduled departures - almost twelve times Delta, the number two carrier.
The first cut came in March 2025, when Southwest ended its Baltimore-Oakland service, a link to the San Francisco Bay Area alternative airport. Then in November 2025 it dropped Baltimore-Chicago O'Hare - part of a bigger retreat, as the airline exited O'Hare entirely and now serves Chicago through its long-dominant hub at Midway instead. Southwest told CBS News that O'Hare 'continues to be challenging' and that it was confident it could serve the Chicago area from Midway.
Seven more routes disappeared in 2026. Baltimore, Colorado Springs and Long Beach lost service in January. In March, the Jackson, Mississippi route ended (American still serves Jackson from Reagan National). And in August, three more went in one sweep: Oklahoma City, Ontario (California) and Pensacola. Interestingly, those last three weren't failing - load factors over the year to June 2026 were 84%, 71% and 77% respectively, roughly in line with Southwest's Baltimore average of 76%.
The only international casualty was Los Cabos in Mexico, which last operated in April 2026. Travellers wanting that beach escape from the DC area will have another option soon, though: United is launching Los Cabos flights from Washington Dulles in October.
So what's left at Baltimore? Plenty. Southwest's busiest BWI route is Orlando, with up to 12 flights a day, and its longest is the 2,457-mile hop to San Francisco. Most flying is on Boeing 737 MAX 8s, with -700s and -800s filling out the schedule.
Why should a traveller care? If you're based in the Baltimore-DC area, some nonstop options have quietly vanished - particularly to smaller and mid-sized cities like Jackson, Pensacola, Oklahoma City and Colorado Springs - so check connection options through other Southwest hubs, or see what American, Frontier and United offer from BWI, DCA and Dulles. On the flip side, anyone flying to Orlando, Florida more broadly, or the West Coast, is still well served from BWI. And the cuts tell a wider story: Southwest is concentrating its Chicago flying at Midway and streamlining less dense routes, so its network is getting more hub-focused overall. For fliers, that means fewer niche nonstops from Baltimore, but stronger frequencies on the routes that remain.
Simple Flying