Cheapest return flights from Boston to St. Thomas in April from $203

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

Return flights

14 Apr - 21 Apr Spirit Airlines
07 Apr - 21 Apr Spirit Airlines
13 Apr - 21 Apr Spirit Airlines
14 Apr - 30 Apr Spirit Airlines
28 Apr - 30 Apr Spirit Airlines
28 Apr - 14 May Spirit Airlines
28 Apr - 07 May Spirit Airlines
28 Apr - 18 May Spirit Airlines
28 Apr - 15 May Spirit Airlines
14 Apr - 20 Apr Spirit Airlines
06 Apr - 09 Apr jetBlue
13 Apr - 20 Apr jetBlue
27 Apr - 30 Apr Spirit Airlines
13 Apr - 30 Apr Spirit Airlines
27 Apr - 14 May Spirit Airlines
27 Apr - 07 May Spirit Airlines
24 Apr - 04 May American Airlines
28 Apr - 09 May Spirit Airlines
28 Apr - 11 May Spirit Airlines
27 Apr - 15 May Spirit Airlines

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

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