Southwest Airlines has gone through more changes in the last four years than in the four decades since it first began flying out of Dallas in 1971 as one of the country’s earliest low-cost airlines.

After hedge fund Elliott Investment Management acquired enough shares to call board votes at the end of 2024, the airline scrapped its decades-old open seating and two-bags-fly-free policies while continuing to make cost-cutting decisions to get Southwest out of a long string of unprofitable quarters.

With 2026 also bringing a sudden spike in jet fuel costs, the airline trimmed its initial growth targets by half, from between 2% to 3% to between 1% to 1.5%, TheTravel reported, while also trimming its network to cut low-traffic routes.

Southwest Airlines has not flown to Washington Dulles since June 2026

Although it once flew to a peak of 12 cities from Washington Dulles (IAD), Southwest quietly exited this market in June 2026 by permanently axing two daily flights to Denver and one daily flight to Phoenix, according to Simple Flying.

The carrier has served the main airport in the American capital since October 2006, but saw its load factor on flights fall significantly over the years. Southwest canceled its remaining flights out of Chicago’s O’Hare (ORD) at the same time, framing the move as part of “ongoing efforts to refine its network.”

Related: Airline grounded, cancels all flights after bankruptcy

“These changes do not represent any significant changes in flight availability for these cities, as we will continue our robust service at Chicago Midway (MDW), Baltimore Washington International (BWI), and Washington Reagan National (DCA),” a Southwest spokesperson said when the exits were first confirmed in the spring of 2026.

The service out of smaller secondary airports rather than the main one in a major city is in line with the low-cost airline model that allows the carrier to offer lower fares.

Southwest flights to Chicago and Washington, D.C. have now been consolidated to the central Midway airport for the former and the Washington Reagan and Baltimore Washington airports for the latter.

Both were already major hubs to which Southwest moved the majority of its D.C. flights over the years.

Dulles is the main airport serving D.C., while Washington Reagan National is a smaller one closer to downtown.

Image source: Shutterstock

What else is happening with Southwest Airlines in the fall of 2026?

According to the airline’s most recent numbers, it has run an average of 271 daily departures from the two other airports in the wider Washington, D.C., area over the summer since its exit from the main Dulles airport.

More Travel News:

  • Airline to launch unusual new flight to Cayman Islands from the U.S.
  • There is a very cool Irish version of swimming pigs in The Bahamas
  • Unexpected country is most luxurious travel destination for 2026
  • Low-cost airline launches easier way to get to Sri Lanka

The streamlining of Southwest’s domestic network came with both losses and new priorities. The carrier significantly expanded its network of flights to different Hawaiian islands from mainland U.S. cities, while also expanding its offerings in cities such as Austin, Orlando, Nashville, and San Diego.

Earlier this year, Southwest announced 15 new and returning routes to these four cities that it will begin flying in spring 2027. This is part of a wider strategy to become the dominant player in niche or underserved smaller markets, rather than prioritizing major metropolises with high airport fees and competition.

Related: British Airways exits entire market, cancels all flights