AirHint found the following cheapest return flights from Houston (HOU) to St. Thomas (STT) in August 2025 (see full year).

Return flights

07 Aug - 27 Aug	Spirit Airlines
05 Aug - 12 Aug	Spirit Airlines
14 Aug - 27 Aug	Spirit Airlines
11 Aug - 27 Aug	Spirit Airlines
09 Aug - 15 Aug	Spirit Airlines
11 Aug - 25 Aug	Spirit Airlines
14 Aug - 25 Aug	Spirit Airlines
11 Aug - 18 Aug	Spirit Airlines
05 Aug - 07 Aug	Spirit Airlines
18 Aug - 25 Aug	Spirit Airlines

Also check the deals for one-way flights from Houston to St. Thomas in August.

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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Cheapest return flights from Houston to St. Thomas in August from $274

Return flights