Cheapest return AUS–STT flights, May

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

Return flights

10 May - 14 May United
11 May - 14 May Delta
12 May - 16 May Frontier Airlines

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

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