Southwest Airlines and Icelandair have signed a commercial agreement to begin interline operations starting in February 2025. The agreement, signed on January 15 at the residence of the Ambassador of Iceland to the United States, marks Southwest’s first airline partnership since announcing its partnership program at Investor Day in 2024.
Southwest Airlines Chief Operating Officer Andrew Watterson and Executive Vice President and Chief Transformation Officer Ryan Green joined Icelandair Chief Commercial Officer Tómas Ingason and Director of Partnerships & Corporate Affairs Helgi Már Björgvinsson for the ceremonial signing.
“It’s fitting for us to launch this chapter of industry-standard airline partnerships with our longtime friends, Icelandair,” said Green.
Ingason added, “The partnership will open new and exciting connections for our customers onwards with Southwest to numerous destinations in North America, and at the same time, their customers will benefit from our extensive connections to Iceland and onwards to Europe.”
Connecting service between Southwest and Icelandair will initially be available through Icelandair’s booking channels, with the first shared gateway being Baltimore-Washington. Future gateways in Nashville and Denver are set to begin later this year. Southwest plans to expand interline booking capabilities through Southwest.com and other sales channels.
Southwest Airlines and Icelandair expressed gratitude to Her Excellency Ambassador Svanhildur Hólm Valsdóttir for hosting the signing ceremony.
