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

Return flights

24 Sep - 30 Oct	VietJet Air
10 Sep - 17 Sep	VietJet Air
29 Sep - 19 Oct	VietJet Air
24 Sep - 16 Oct	VietJet Air
26 Sep - 25 Oct	VietJet Air
12 Sep - 21 Sep	VietJet Air
25 Sep - 24 Oct	China Southern
28 Sep - 16 Oct	China Southern
12 Sep - 19 Sep	VietJet Air
26 Sep - 29 Oct	Jetstar	direct
10 Sep - 23 Sep	VietJet Air
16 Sep - 24 Sep	Jetstar
26 Sep - 25 Oct	Jetstar	direct
24 Sep - 30 Oct	Jetstar	direct
12 Sep - 28 Sep	VietJet Air
11 Sep - 19 Sep	VietJet Air
09 Sep - 12 Sep	China Southern
08 Sep - 14 Sep	China Southern
09 Sep - 14 Sep	China Southern
12 Sep - 14 Oct	China Southern

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 360€

Return flights