Southwest Airlines and Turkish Airlines Join Forces for Transatlantic Flights

Southwest Airlines is set to collaborate with Turkish Airlines starting in early 2026, providing travelers with a seamless one-ticket option for transatlantic journeys from the United States to Istanbul. This partnership signifies Southwest’s strategy to enhance its international presence by leveraging alliances rather than forming its own long-haul routes.

The collaboration will enable passengers to book integrated itineraries that connect Southwest’s extensive domestic network with Turkish Airlines’ global services through shared gateway airports in the U.S. Tickets for this new offering are anticipated to be available next year through Turkish Airlines, travel agents, and online booking sites.

Turkish Airlines boasts one of the foremost international networks, connecting over 350 destinations across 132 countries from its base at Istanbul Airport. Currently, Turkish Airlines serves 10 U.S. airports also within Southwest’s network, facilitating numerous connection opportunities for travelers heading to various locations in Europe, Asia, the Middle East, and Africa.

Southwest’s Chief Operating Officer, Andrew Watterson, remarked that this partnership aims to broaden the airline’s global presence while welcoming international travelers to the Southwest experience.

“Both Southwest and Turkish Airlines are recognized for the warmth of our employees, the authenticity of our hospitality, and the reliability of our operations,” Watterson stated. He expressed gratitude for the relationship that is expected to introduce thousands of international travelers to unique experiences offered by both airlines.

This partnership aligns with Southwest’s evolving international approach. Historically, the airline has focused on point-to-point domestic services using a single-type Boeing 737 fleet. However, it has increasingly sought partnerships to extend its network beyond North America without needing to operate long-haul aircraft.

In 2025 alone, Southwest has announced six international collaborations, linking its network to destinations in Europe, Asia, the Middle East, and Africa. These include partnerships with Condor for transatlantic flights, Philippine Airlines and EVA Air for travel to Asia, and Icelandair for connections throughout Europe. Additionally, Hahnair will support global ticket distribution via travel agencies and booking platforms.

Distinct from traditional code-share agreements, these partnerships allow travelers to book single-ticket itineraries that incorporate both Southwest-operated segments and those from partner airlines. The Turkish Airlines agreement follows a similar model, ensuring synchronized ticketing and connections without requiring Southwest to operate intercontinental flights.

Alongside this expanding partnership network, Southwest has revealed plans for significant alterations to its in-flight experience. Starting January 27, 2026, the airline will unveil a redesigned cabin experience, allowing for assigned seating and extra-legroom choices, marking a shift from its long-standing open-seating policy.

As a member of the Star Alliance, Turkish Airlines is continuously expanding its long-haul services, establishing Istanbul as a pivotal global connecting hub. This partnership not only increases Turkish Airlines’ access to additional U.S. traffic but also allows Southwest to extend its services well beyond its conventional route offerings.

The partnership is expected to be launched in 2026, pending the finalization of operational details.

What are your thoughts on this new collaboration between Southwest Airlines and Turkish Airlines?