Cheapest return flights from Boston to St. Thomas in April from $240

Best time to book flights for Boston (BOS) to St. Thomas (STT) flights at AirHint

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

Return flights

14 Apr - 17 Apr Spirit Airlines
05 Apr - 09 Apr American Airlines
05 Apr - 12 Apr Delta
05 Apr - 11 Apr United
15 Apr - 21 Apr Spirit Airlines
15 Apr - 22 Apr Spirit Airlines
05 Apr - 13 Apr American Airlines
20 Apr - 25 Apr Spirit Airlines
19 Apr - 22 Apr Spirit Airlines
21 Apr - 27 Apr Spirit Airlines

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

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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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