Cheapest return flights from San Antonio to St. Thomas in December from $306

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

Return flights

07 Dec - 12 Dec Spirit Airlines
12 Dec - 18 Dec Spirit Airlines
12 Dec - 15 Dec Spirit Airlines
07 Dec - 18 Dec Spirit Airlines
07 Dec - 15 Dec Spirit Airlines
12 Dec - 24 Dec Spirit Airlines
07 Dec - 24 Dec Spirit Airlines
12 Dec - 21 Dec Spirit Airlines
12 Dec - 30 Dec Spirit Airlines
07 Dec - 21 Dec Spirit Airlines
30 Dec - 08 Jan Spirit Airlines
30 Dec - 11 Jan Spirit Airlines
24 Dec - 08 Jan Spirit Airlines
24 Dec - 11 Jan Spirit Airlines
30 Dec - 05 Jan Spirit Airlines
30 Dec - 17 Jan Spirit Airlines
24 Dec - 05 Jan Spirit Airlines
27 Dec - 08 Jan Spirit Airlines
27 Dec - 11 Jan Spirit Airlines
21 Dec - 08 Jan Spirit Airlines

Also check the deals for one-way flights from San Antonio 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.