Southwest Airlines has announced a new interline partnership with Philippine Airlines, marking its fourth interline agreement of 2025. The collaboration expands Southwest’s transpacific reach and offers travelers more seamless travel options between the United States and Asia.
The new interline agreement enables single-itinerary bookings across both carriers’ networks via Honolulu, Seattle, San Francisco, and Los Angeles, all of which are served by Philippine Airlines from its Manila hub.
Customers can now purchase single tickets that include both airlines’ flights through Philippine Airlines’ sales channels and major global distribution systems (GDSs), though these bookings are not yet available through Southwest’s own channels.
This partnership opens dozens of new travel combinations across the Pacific, further strengthening Southwest’s growing portfolio of international connections following recent deals with Icelandair, EVA Air, and China Airlines.
Disclaimer: TravelCapybara is an independent media brand owned and operated by NuvexMedia LLC, publishing travel news, destination guides, research, and insights. NuvexMedia LLC may invest in or collaborate with companies across the travel, hospitality, technology, and digital media sectors. These relationships do not influence TravelCapybara’s editorial coverage. While we strive for accuracy, travel requirements, prices, schedules, availability, and local conditions may change without notice. Readers should independently verify information before making travel or purchasing decisions. This content is for informational purposes only and does not constitute professional advice. © 2026 NuvexMedia LLC. All rights reserved.
