Cheapest return flights from Austin to St. Thomas in December from $289

AirHint found the following cheapest return flights from Austin (AUS) to St. Thomas (STT) in December 2025 (see full year).

Return flights

31 Dec - 10 Jan Spirit Airlines
15 Dec - 29 Dec Spirit Airlines
31 Dec - 17 Jan Spirit Airlines
25 Dec - 10 Jan Spirit Airlines
25 Dec - 29 Dec Spirit Airlines
08 Dec - 12 Dec Spirit Airlines
14 Dec - 18 Dec Spirit Airlines
23 Dec - 10 Jan Spirit Airlines
23 Dec - 29 Dec Spirit Airlines
16 Dec - 16 Dec American Airlines
31 Dec - 06 Jan Spirit Airlines
25 Dec - 06 Jan Spirit Airlines
05 Dec - 09 Dec Spirit Airlines
23 Dec - 06 Jan Spirit Airlines
31 Dec - 05 Jan Spirit Airlines
26 Dec - 10 Jan Spirit Airlines
25 Dec - 05 Jan Spirit Airlines
26 Dec - 29 Dec Spirit Airlines

Also check the deals for one-way flights from Austin to St. Thomas in December.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in St. Thomas

Cheap car rent in St. Thomas

Feel free to contact us with any feedback or request another flight research.