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Airlines

Southwest Airlines announces new interline partnership with Singapore Airlines

Written by Jeffrey Teruel | Published on June 08, 2026

Summary:

Southwest Airlines has announced a new interline partnership with Singapore Airlines (SIA).

Southwest Airlines has announced a new interline partnership with Singapore Airlines (SIA).


Announced during the International Air Transport Association (IATA) Annual General Meeting in Rio de Janeiro, Brazil, the new partnership will enable single-ticket bookings to/from the United States. The first shared gateway airports between the two airlines are three hubs in the US where Singapore Airlines operates at: Los Angeles, San Francisco, and Seattle. Customers can book connections via the three cities to nearly 120 cities within Southwest’s network.


“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,” said Andrew Watterson, Southwest Airlines Chief Operating Officer. “Journeys that pair Southwest and Singapore Airlines not only connect new geographies but also create consistent high-quality Customer experiences.”


Singapore Airlines is Southwest’s 8th active partnership with an overseas airline. The airline’s partnerships include Icelandair, China Airlines, EVA Air, Philippine Airlines, Condor Airlines, Turkish Airlines, and All Nippon Airways (ANA).