Southwest Unveils Largest Summer 2027 Schedule, Adding 11 Routes Across Austin, Nashville, and San Diego

Key points

• Southwest announced an 11-route expansion for summer 2027, running from June 3 to August 2, 2027, with nine routes being completely new to the airline's network.
• Austin-Bergstrom International Airport (AUS) is the primary beneficiary, receiving seven new or returning routes, including weekend service to Nassau, Bahamas; Punta Cana, Dominican Republic; and Liberia, Costa Rica, as well as a return to Portland, Oregon.
• Nashville International Airport (BNA) will add three new destinations: Nassau, Bahamas; Providenciales, Turks and Caicos; and Boise, Idaho, alongside returning seasonal service to Bozeman, Montana, and Portland, Oregon.
• Sarasota-Bradenton International Airport (SRQ) will see a return of Saturday-only seasonal service to Austin, Texas, and an increase in frequency to Kansas City, Missouri, from weekly to daily.
• San Diego International Airport (SAN) will add seasonal Sunday service to Oklahoma City, along with returning flights to Bozeman, Pittsburgh, and Columbus, Ohio.
• The expansion aligns with the construction of Southwest's first airport lounges in Austin and Nashville, which are expected to open in late 2027 in partnership with Chase.

Background

This expansion follows Southwest's earlier announcement in July 2026 of four new year-round routes from Sarasota starting in January 2027. The airline has also been investing in infrastructure, with $539 million spent on renovations at Nashville's Concourse D over the last decade and $53 million currently under construction for a new lounge in Nashville. The move to add lounges and premium services reflects a broader strategic shift by Southwest to attract higher-spending travelers and boost ancillary revenue, as noted in previous coverage of the airline's partnership with Chase.

How outlets are covering it

The Sarasota Herald-Tribune focuses on the local impact of the expansion, highlighting the return of the Sarasota-Austin route and increased service to Kansas City, while also noting concurrent expansions by Allegiant and Avelo at SRQ. The Tennessean emphasizes Nashville's growth, noting that Southwest has added up to 20 more departures in summer 2027 compared to 2026 and that BNA is now Southwest's fifth busiest airport. The Points Guy provides a broader national perspective, framing the 11-route expansion as the airline's largest summer schedule ever and highlighting the strategic focus on Austin and Nashville, where new lounges are under construction. All three sources agree on the dates and routes but differ in emphasis, with local outlets focusing on specific regional impacts and national outlets highlighting the overall scale and strategic significance of the expansion.

Why it matters

The expansion signals Southwest's continued investment in key markets like Austin and Nashville, where it is also building its first airport lounges. This move could intensify competition with Delta Air Lines at Austin, where Delta has recently added routes. For travelers, the expansion offers more direct connections to Caribbean and Central American destinations, as well as increased domestic service. The timing of the expansion, coinciding with the opening of new lounges, suggests a strategic effort to attract premium travelers and boost ancillary revenue.

What to watch

Southwest will begin operating the new and returning routes on June 3, 2027. Tickets for the seasonal Sarasota-Austin route are already available for booking. The airline expects to operate its largest-ever schedule in Austin, with around 143 departures on peak days, and as many as 220 daily flights in Nashville. The new airport lounges in Austin and Nashville are expected to open in late 2027, with access via a forthcoming premium Southwest Rapid Rewards Credit Card issued by Chase.