EVA Air and Southwest Airlines Launch Interline Partnership for Seamless Travel Between Asia and North America

EVA Air and Southwest Airlines have launched an interline partnership to expand seamless travel between Asia and North America. The agreement connects EVA Air passengers in four key US cities (LAX, SFO, SEA, and ORD) to a wider range of US destinations with Southwest Airlines' extensive network. Passengers can now book a single itinerary with coordinated ticketing and through-checked baggage service. This partnership aims to offer competitive fares and broaden access in key routes, enhancing transpacific travel options.

EVA Air and Southwest Airlines have established a strategic interline partnership, enhancing connectivity between Asia and North America. The agreement connects EVA Air passengers from four major U.S. gateways—Los Angeles, San Francisco, Seattle, and Chicago—to Southwest's extensive domestic network spanning over 100 cities [1]. This partnership aims to offer competitive fares and broaden access in key routes, enhancing transpacific travel options.

The interline partnership enables seamless travel with unified booking, coordinated ticketing, and through-checked baggage service. Passengers can now book single itineraries combining both carriers' flights through EVA Air's platforms and travel agencies [2]. Southwest's new interline agreement with EVA Air strategically expands its international reach while leveraging its domestic network strength [1].

EVA Air currently operates 89 weekly flights to North America, set to increase to 94 weekly flights by year-end. The partnership enables EVA Air passengers to connect to more than 30 U.S. destinations via Southwest's network [2]. This arrangement capitalizes on Southwest's strengths in the domestic market while addressing a historical weakness in international connectivity [1].

Financial terms of the partnership were not disclosed, but interline agreements typically involve pro-rated revenue sharing. This approach allows Southwest to effectively expand its global footprint without significant capital investment [1]. The partnership is part of EVA Air's broader strategy to deepen its U.S. presence, which includes code-sharing partnerships with other airlines [2].

China Airlines, Taiwan's other major international carrier, also announced a similar interline partnership with Southwest Airlines, further expanding the connectivity options for passengers traveling between Asia and North America [3].

References:
[1] https://www.stocktitan.net/news/LUV/eva-air-and-southwest-airlines-launch-interline-partnership-to-x4qj5nlh713y.html
[2] https://www.taipeitimes.com/News/taiwan/archives/2025/08/27/2003842755
[3] https://focustaiwan.tw/business/202508260007