AirHint found the following cheapest return flights from Fort Lauderdale (FLL) to Bangkok (BKK) in September 2025 (see full year).

Return flights

25 Sep - 05 Oct	Spirit Airlines
30 Sep - 12 Oct	Spirit Airlines
17 Sep - 30 Sep	Spirit Airlines
16 Sep - 20 Oct	jetBlue
25 Sep - 04 Oct	Frontier Airlines
08 Sep - 24 Sep	Spirit Airlines
25 Sep - 09 Oct	Spirit Airlines
14 Sep - 21 Sep	Spirit Airlines
14 Sep - 09 Oct	jetBlue
06 Sep - 13 Sep	Spirit Airlines
08 Sep - 22 Sep	Delta
10 Sep - 17 Sep	Delta
02 Sep - 16 Sep	Delta
08 Sep - 16 Sep	Delta
02 Sep - 08 Sep	Delta
09 Sep - 16 Sep	Delta
16 Sep - 01 Oct	Delta
24 Sep - 04 Oct	Delta
21 Sep - 04 Oct	Delta

Also check the deals for one-way flights from Fort Lauderdale to Bangkok 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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Fort Lauderdale to Bangkok in September from $808

Return flights