AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to St. Thomas (STT) in September 2025 (see full year).

Return flights

29 Sep - 18 Oct	Spirit Airlines
05 Sep - 12 Sep	Spirit Airlines
29 Sep - 09 Oct	Spirit Airlines
29 Sep - 12 Oct	Spirit Airlines
27 Sep - 18 Oct	Spirit Airlines
28 Sep - 18 Oct	Spirit Airlines
29 Sep - 10 Oct	Spirit Airlines
06 Sep - 12 Sep	Spirit Airlines
27 Sep - 09 Oct	Spirit Airlines
28 Sep - 09 Oct	Spirit Airlines
27 Sep - 12 Oct	Spirit Airlines
28 Sep - 12 Oct	Spirit Airlines
11 Sep - 12 Sep	Spirit Airlines
07 Sep - 12 Sep	Spirit Airlines
05 Sep - 14 Sep	Spirit Airlines
06 Sep - 14 Sep	Spirit Airlines
05 Sep - 10 Sep	Frontier Airlines

Also check the deals for one-way flights from Dallas-Fort Worth to St. Thomas in September.

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 Dallas-Fort Worth to St. Thomas in September from 216€

Return flights