Southwest continued its spree of interline deal signings this week with a new partnership with Turkish Airlines.
Starting in January 2026, passengers will be able to book connecting Southwest and Turkish flights with a single ticket, the carrier said Wednesday.
Turkish Airlines flies to 10 U.S. cities served by Southwest, and those destinations will serve as gateways under the interline deal. Southwest did not name those locations, but based on the carriers’ route maps, they appear to be Boston, Washington Dulles, Atlanta, Miami, Detroit, Chicago O’Hare, Denver, Los Angeles, San Francisco, and Seattle.
“Both Southwest and Turkish Airlines are known for the warmth of our employees, the authenticity of our hospitality, and the reliability of our airline operations,” Southwest COO Andrew Watterson said in a news release. “We’re grateful for this new relationship that will usher thousands of international travelers each week through experiences around the globe that showcase the best of both carriers and globally enhance awareness of the Southwest brand.”
Turkish Airlines has its main hub at Istanbul Airport and serves more than 350 destinations in 132 countries.
Southwest now has interline deals with six foreign airlines, all signed this year. Three of those agreements – with Turkish Airlines, Germany’s Condor, and Philippine Airlines – were announced in just the last two months.
