$74 Cheap Spirit Airlines flights Fort Lauderdale (FLL) to St. Thomas (STT)

Set the "Price (lowest to highest)" filter on Expedia to find cheap Spirit Airlines return flights from $151 from FLL to STT. Affordable one-way options from $74 are also available.**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 discover cheap flights from FLL to STT with Spirit Airlines, begin searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another 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.

The first flight from FLL to STT with Spirit Airlines leaves at 7:10AM UTC-5. You'll land at 10:46AM UTC-4. The last Spirit Airlines flight of the day leaves at 7:10AM UTC-5 and arrives at 10:46AM UTC-4. With approximately 20% fewer cancellations for early and mid-morning flights, heading out early is usually the best choice.**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.

With a rewarding loyalty program, Spirit Airlines is a favorite of many passengers heading from FLL to STT. Plus, as a Free Spirit and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.