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

Return flights

04 Aug - 08 Aug	Frontier Airlines
03 Aug - 06 Aug	Frontier Airlines
01 Aug - 08 Aug	Frontier Airlines
02 Aug - 06 Aug	Frontier Airlines
30 Aug - 06 Sep	Delta
10 Aug - 15 Aug	Frontier Airlines
15 Aug - 19 Aug	Frontier Airlines
03 Aug - 08 Aug	Frontier Airlines
03 Aug - 07 Aug	Frontier Airlines
11 Aug - 25 Aug	Frontier Airlines
18 Aug - 25 Aug	Frontier Airlines
29 Aug - 03 Sep	Delta

Also check the deals for one-way flights from New York 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.

Book a cheap hotel in St. Thomas

Cheap car rent in St. Thomas

Cheapest return flights from New York to St. Thomas in August from 265€

Return flights