Famously resistant to practically any partnerships, Southwest Airlines gains access Europe via Icelandair, while Icelandair gains access to the US market.

What’s Happening Between Icelandair and Southwest Airlines?

Icelandair and Southwest Airlines have signed a strategic partnership agreement, setting the stage for enhanced connectivity between their networks. It’s a major move for Southwest Airlines, which has been notoriously shy about collaboration with other airlines. Starting in February 2025, travelers will enjoy seamless connections through Baltimore/Washington International Airport (BWI). By summer, two additional connecting points, Nashville (BNA) and Denver (DEN), will expand options even further.

Critically, this marks Southwest’s first airline partnership, linking its extensive North American routes with Icelandair’s European network, including Iceland and beyond. Meanwhile, Icelandair has always been receptive to a wide range of partnerships. It’s current roster includes:

JetBlue Airways
Alaska Airlines
Finnair
AirBaltic
SAS (Scandinavian Airlines)

What is the Benefit of the Icelandair and Southwest Airlines Partnership?

Icelandair and Southwest Airlines. Image: Icelandair.

This partnership offers convenience and flexibility for travelers. Icelandair’s operations at Keflavík International Airport (KEF) are impressive, maintaining a well-organized entry into the EU. Icelandair passengers gain access to Southwest’s domestic U.S. network, reaching countless U.S. resort and city destinations. By integrating online systems, you’ll be able to book a flight on either website, with benefits such as through-check luggage and streamlined ticketing.

When Does The Icelandair and Southwest Airlines Partnership Start?

The partnership officially begins in February 2025, with Baltimore as the inaugural gateway for connecting flights. By summer, the network will expand to include Nashville and Denver. You’ll be able to book flights with either airline on a single itinerary.

Can I Earn Frequent Flier Miles on Either Airline?

Specific loyalty program details haven’t been disclosed but, frequent flyers from both airlines are likely to benefit. It’s expected that Southwest’s Rapid Rewards and Icelandair’s Saga Club will integrate features such as earning and redeeming points across the two networks.