Cheapest return flights from Boston to St. Thomas in December from $419

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

Return flights

31 Dec - 06 Jan jetBlue
25 Dec - 29 Dec Delta direct
31 Dec - 06 Jan Delta direct
31 Dec - 05 Jan Delta direct
28 Dec - 04 Jan Spirit Airlines
29 Dec - 03 Jan Frontier Airlines
27 Dec - 03 Jan Spirit Airlines
28 Dec - 04 Jan Delta direct
29 Dec - 03 Jan Delta direct
30 Dec - 03 Jan Delta direct
27 Dec - 03 Jan Delta direct

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

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