Cheapest return flights from San Juan to St. Thomas in May from 143€

AirHint found the following cheapest return flights from San Juan (SJU) to St. Thomas (STT) in May 2026 (see full year).

Return flights

05 May - 11 May jetBlue direct
01 May - 04 May jetBlue direct
21 May - 26 May Cape Air direct
01 May - 03 May Frontier Airlines
01 May - 05 May Frontier Airlines
02 May - 04 May Cape Air direct
02 May - 05 May Cape Air direct
02 May - 06 May Cape Air direct
03 May - 06 May Cape Air direct
01 May - 06 May Cape Air direct
31 May - 06 Jun Spirit Airlines

Also check the deals for one-way flights from San Juan to St. Thomas in May.

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