Southwest Airlines Adds Singapore Airlines to Partnership Portfolio

Image: Singapore Airlines 737 MAX. (Photo Credit: Singapore Airlines)
Image: Singapore Airlines 737 MAX. (Photo Credit: Singapore Airlines)
Patrick Clarke
by Patrick Clarke
Last updated: 12:30 PM ET, Tue June 9, 2026

Southwest Airlines has announced a new interline partnership with Singapore Airlines (SIA), opening up even more single-ticket travel options.

The SIA Group includes Singapore Airlines and Scoot, which operate services to more than 130 destinations in 35 countries and territories around the world.

Singapore's flag carrier flies from its global hub at Singapore Changi Airport to three U.S. airports served by Southwest, including Los Angeles (LAX), Seattle/Tacoma (SEA) and San Francisco (SFO).

As part of the latest partnership, international travelers can now connect to nearly 120 airports in the Southwest network from those three airports.

The agreement was announced during the International Air Transport Association (IATA) Annual General Meeting in Brazil.

"Singapore Airlines becomes the eighth carrier in our partnership portfolio, exemplified by its quality and reach. These carriers are facilitating access to our network for a growing global audience drawn to our improved onboard product and increasingly choosing to fly with us," Andrew Watterson, Southwest Airlines Chief Operating Officer, said in a statement.

"Journeys that pair Southwest and Singapore Airlines not only connect new geographies but also create consistent high-quality Customer experiences."

The announcement comes as Southwest has extended its bookable flight schedule into 2027 and is offering up to 40 percent off flights during its Week of WOW sale.


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Patrick Clarke

Patrick Clarke

Senior Editor

A Maryland native and wanderer who has lived across the U.S. from North Carolina to SoCal, Patrick Clarke graduated from Towson University with a B.S. in journalism. He previously worked for Bleacher

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