Southwest Airlines and Turkish Airlines have agreed an interline alliance that will permit single‑ticket itineraries between the United States and Istanbul with onward connections across both carriers’ networks. The agreement takes effect in January 2026 (operational in Q1 2026) and names Turkish as Southwest’s sixth overseas partner.
Discovered |
Briefing
The pact creates single‑ticket US–Istanbul connectivity from January/early‑Q1 2026 and adds access to Turkish’s network of more than 350 destinations in 132 countries — a material expansion of Southwest’s international feed and codeshare reach. See the context of Southwest's global route authority filing.
The alliance has immediate network and commercial implications for long‑haul strategy and fleet planning: it pairs Southwest’s US distribution with Turkish’s widebody long‑haul capability and follows Turkish’s recent public roadmap on fleet mix and expansion. Review Turkish Airlines’ future fleet and network plans for background.
Reported By
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Southwest Partners with Turkish Airlines to Expand International Network • Business Traveller
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Southwest Adds Turkish Airlines as Latest International Partner • upgradedpoints.com
Southwest and Turkish Airlines Unveil 2026 Partnership • aeroxplorer.com
Southwest adds Turkish Airlines as newest international partner • The Points Guy
Southwest Airlines Will Partner with Another European Airline • milestomemories.com
Airline Economics
• Calum Wilson