Southwest Airlines and Singapore Airlines Launch Interline Partnership

Southwest Airlines and Singapore Airlines started an interline partnership on June 8, 2026, that lets passengers buy one ticket for journeys connecting the two carriers' routes. The SIA Group, which includes Singapore Airlines and Scoot, serves more than 130 destinations in 35 countries and territories.

Airlines flies between its Singapore Changi hub and three U.S. airports also served by Southwest: Los Angeles, Seattle/Tacoma, and San Francisco. Travelers can now connect at those airports to nearly 120 destinations in the Southwest network. Tickets for the combined journeys are available through Singapore Airlines, travel agents, and travel websites.

"Singapore Airlines becomes the eighth carrier in our partnership portfolio exemplified by its quality and reach," said Andrew Watterson, Southwest Airlines Chief Operating Officer. " Southwest now maintains eight active partnerships with overseas carriers serving Asia, Europe, the Middle East, and Africa.