AirHint found the following cheapest return flights from Boston (BOS) to St. Thomas (STT) in January 2026 (see full year).

Return flights

22 Jan - 28 Jan	Delta	direct
20 Jan - 25 Jan	American Airlines
21 Jan - 26 Jan	American Airlines
20 Jan - 25 Jan	Delta	direct
05 Jan - 14 Jan	Delta	direct
06 Jan - 09 Jan	Delta	direct
06 Jan - 10 Jan	jetBlue
05 Jan - 09 Jan	Delta	direct
17 Jan - 21 Jan	jetBlue
22 Jan - 09 Feb	Spirit Airlines
22 Jan - 11 Feb	Spirit Airlines
04 Jan - 09 Jan	jetBlue
22 Jan - 07 Feb	Spirit Airlines
23 Jan - 09 Feb	Spirit Airlines
23 Jan - 11 Feb	Spirit Airlines
18 Jan - 07 Feb	Spirit Airlines
23 Jan - 07 Feb	Spirit Airlines
22 Jan - 08 Feb	Spirit Airlines
23 Jan - 08 Feb	Spirit Airlines

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

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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Cheapest return flights from Boston to St. Thomas in January from $224

Return flights