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

Return flights

03 Sep - 16 Sep	Jetstar
03 Sep - 16 Sep	Jetstar	direct
03 Sep - 23 Sep	Jetstar	direct
07 Sep - 16 Sep	Jetstar	direct
03 Sep - 11 Sep	Jetstar	direct
03 Sep - 10 Sep	Jetstar
05 Sep - 23 Sep	Jetstar	direct
01 Sep - 11 Sep	VietJet Air
08 Sep - 22 Sep	VietJet Air
29 Sep - 19 Oct	VietJet Air
29 Sep - 29 Oct	VietJet Air
29 Sep - 28 Oct	VietJet Air
28 Sep - 28 Oct	Jetstar
05 Sep - 13 Sep	Jetstar	direct
28 Sep - 27 Oct	Singapore Airlines
29 Sep - 27 Oct	Singapore Airlines
30 Sep - 28 Oct	Singapore Airlines
16 Sep - 23 Oct	Jetstar
24 Sep - 02 Oct	VietJet Air
28 Sep - 07 Oct	Jetstar

Also check the deals for one-way flights from Brisbane 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.

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Cheapest return flights from Brisbane to Bangkok in September from $439

Return flights