Cheapest return PWM–STT flights, May

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

Return flights

10 May - 13 May United
15 May - 23 May Breeze Airways
29 May - 04 Jun Breeze Airways

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

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