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

Return flights

11 Aug - 15 Aug	Frontier Airlines
01 Aug - 08 Aug	Frontier Airlines
21 Aug - 23 Aug	Spirit Airlines
01 Aug - 04 Aug	Spirit Airlines
01 Aug - 03 Aug	Spirit Airlines
20 Aug - 24 Aug	Spirit Airlines
01 Aug - 21 Aug	Spirit Airlines
10 Aug - 14 Aug	Frontier Airlines
21 Aug - 07 Sep	Spirit Airlines
24 Aug - 07 Sep	Spirit Airlines
01 Aug - 17 Aug	Spirit Airlines
11 Aug - 15 Aug	Delta	direct

Also check the deals for one-way flights from Atlanta 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 Atlanta to St. Thomas in August from 131€

Return flights