Southwest Airlines has signed a new interline agreement with Philippine Airlines, unlocking dozens of new travel options across the Pacific.
In the US, the two airlines will work together to serve international travellers connecting through Los Angeles (LAX), Seattle/Tacoma (SEA), San Francisco (SFO), and Honolulu, Oahu (HNL).
“With nearly 90 flights a day in our schedule that touch the Hawaiian Islands, and as California's largest air carrier, Southwest is positioned like no other airline in serving Philippine Airlines' passengers arriving or departing the US,” said Andrew Watterson, chief operating officer of Southwest.
"Each airline partnership brings unique and incremental reach to places around the globe for both carriers, and gives more consumers an opportunity to begin or end their journey with Southwest."
Southwest now partners with four overseas carriers and is “actively exploring” additional transatlantic partnerships for later this year.
It is also working towards a redesigned cabin experience, and for flights operating from January 27, 2026, it will introduce assigned seating and extra legroom booking for the first time.