Southwest’s 2027 Route Explosion: 15 Cities, 11 New Ways to Unlock Your Summer Adventures—Here’s Why It Matters More Than You Think

Ever wondered what it’d be like if Southwest Airlines decided to throw the biggest summer bash the skies have ever seen? Well, buckle up, because that’s exactly what’s happening come summer 2027. The Dallas-based giant isn’t just expanding; it’s doubling down with an 11-route explosion, including fresh flights to paradises like Costa Rica, Turks and Caicos, and the Bahamas. Austin Bergstrom International Airport (AUS) is the real MVP here, snagging seven brand-new or returning routes — yes, seven! Nashville and San Diego aren’t sitting this one out either, adding some juicy new destinations and ramping up their existing services. Whether you’re a sun chaser or a city hopper, Southwest’s upcoming schedule looks set to make summer travel a whole lot more thrilling—and a tad more complicated to resist. Ready to see where you can jet off to next? LEARN MORE

Southwest Airlines is planning its biggest flight schedule ever for next summer, with a big focus in Austin, Nashville in San Diego.

The Dallas-based carrier on Friday announced an 11-route expansion that includes new service to Costa Rica, Turks and Caicos and the Bahamas.

Nine of the routes are flights Southwest has never offered before.

As part of its summer 2027 “route drop,” the airline will link Austin Bergstrom International Airport (AUS) to three new destinations in the Caribbean and Central America.

AUS was the biggest winner overall, with a total of seven completely new or returning routes launching starting in June.

Elsewhere, Nashville International Airport (BNA) will get two new island destinations and a few additional domestic flights.

And San Diego International Airport (SAN) will land new service to the Deep South, along with a host of additional flights to cities it’s already served.

Southwest’s new and returning routes

Here’s the rundown of the routes Southwest is launching and bringing back next summer.

This new service will run during the peak summer season between June 3 and Aug. 2, 2027.

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Southwest on Friday also announced it would bring back seasonal service operated in 2026 from Nashville to Bozeman, Montana.

Ditto for its San Diego flights to Bozeman, Pittsburgh and Columbus, Ohio.

Doubling down on Austin, Nashville

In Austin, Southwest expects to operate its largest-ever schedule next summer, with around 143 departures on peak days.

The carrier has gotten plenty of competition in the Texas capital of late, with Delta Air Lines quickly adding routes at an airport it’s made one of its top focus cities. But Southwest remains the clear leader at AUS, still.

Meanwhile, Southwest is planning as many as 220 daily flights in Nashville next summer.

Not coincidentally, AUS and BNA are two airport where construction is already underway on inaugural Southwest airport lounges.

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