Southwest Airlines has launched its biggest summer sale of 2026, with one-way domestic fares starting at just $49 for travel between June 1 and August 31. The promotion covers over 200 routes across the airline's network and includes two free checked bags as always.
Top deals include Dallas to Denver at $49, Chicago to Nashville at $59, and Los Angeles to Las Vegas at $49. Longer routes such as New York to Miami are available from $99 one way, representing savings of up to 45 percent off regular pricing.
The sale ends April 22, and blackout dates apply around the Fourth of July holiday weekend. Travelers can lock in the low fares with Southwest's flexible booking policy that allows free changes and cancellations.
