Southwest and China Airlines' partnership is an interline deal, offering joint itineraries to connect Asia and the U.S. on one ticket. Flights start in 2026.

That's in addition to the three gateways the two airlines launched earlier this year: Denver International Airport (DEN), Nashville International Airport (BNA) and Baltimore/Washington International Thurgood Marshall Airport (BWI).

Travelers from abroad are about to get more exposure to Southwest Airlines as the carrier pushes ahead on its first trans-Pacific airline partnership. The Dallas airline is in discussions with Taiwan-based carrier China Airlines to create an interline partnership,