Cheapest one-way flights from Boston to St. Thomas in December from $124

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

One-Way flights

07 Dec Spirit Airlines
08 Dec American Airlines
09 Dec American Airlines
06 Dec American Airlines
11 Dec Spirit Airlines
06 Dec jetBlue direct
24 Dec Spirit Airlines
22 Dec United
23 Dec Spirit Airlines
28 Dec Frontier Airlines

Also check the deals for return 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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