$138 Cheap Spirit Airlines flights St. Thomas (STT) to Dallas (DFW)

Use the "Price (lowest to highest)" filter on Expedia to find cheap Spirit Airlines round-trip flights from $245 from STT to DFW. Affordable one-way tickets from $138 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To get cheap flights from STT to DFW with Spirit Airlines, start your search about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Search Spirit Airlines's earliest flights from STT to DFW by checking the "Early Morning" and "Morning" filters. Not only will you get to your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

A rewarding loyalty program and the opportunity to collect points through Free Spirit are the start of the reasons to jet off from STT to DFW with Spirit Airlines. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to Spirit Airlines's loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.