Cheapest one-way flights from Boston to St. Thomas in March from $98

AirHint found the following cheapest one-way flights from Boston (BOS) to St. Thomas (STT) in March 2026 (see full year).

One-Way flights

11 Mar Spirit Airlines
03 Mar Spirit Airlines
18 Mar Spirit Airlines
09 Mar Spirit Airlines
23 Mar Spirit Airlines
03 Mar Delta direct
18 Mar jetBlue direct
20 Mar jetBlue direct
22 Mar Spirit Airlines
01 Mar Delta direct

Also check the deals for return flights from Boston to St. Thomas in March.

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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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