Cheapest return flights from Boston to St. Thomas in December from $311

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

Return flights

11 Dec - 15 Dec American Airlines
14 Dec - 15 Dec Spirit Airlines
06 Dec - 09 Dec American Airlines
14 Dec - 23 Dec Spirit Airlines
15 Dec - 23 Dec Spirit Airlines
30 Dec - 08 Jan Spirit Airlines
18 Dec - 26 Dec jetBlue
11 Dec - 23 Dec Spirit Airlines
29 Dec - 08 Jan Spirit Airlines
29 Dec - 05 Jan jetBlue
14 Dec - 30 Dec Spirit Airlines
24 Dec - 08 Jan Spirit Airlines
23 Dec - 08 Jan Spirit Airlines
23 Dec - 30 Dec Delta direct
15 Dec - 30 Dec Spirit Airlines
30 Dec - 05 Jan Spirit Airlines
27 Dec - 08 Jan Spirit Airlines
24 Dec - 05 Jan Spirit Airlines
23 Dec - 05 Jan Spirit Airlines
23 Dec - 02 Jan jetBlue

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

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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.

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