AirHint found the following cheapest return flights from Geneva (GVA) to Bangkok (DMK) in September 2025 (see full year).

Return flights

17 Sep - 24 Sep	Air China
03 Sep - 16 Sep	Air China
11 Sep - 21 Sep	Air China
03 Sep - 11 Sep	Air China
04 Sep - 21 Sep	Air China
08 Sep - 22 Sep	Etihad Airways
12 Sep - 18 Sep	Air China
15 Sep - 22 Sep	Etihad Airways
08 Sep - 28 Sep	Etihad Airways
07 Sep - 28 Sep	Etihad Airways
17 Sep - 01 Oct	Etihad Airways
20 Sep - 04 Oct	Etihad Airways
22 Sep - 05 Oct	Etihad Airways
15 Sep - 05 Oct	Etihad Airways
24 Sep - 08 Oct	Etihad Airways
14 Sep - 11 Oct	SWISS
22 Sep - 10 Oct	Etihad Airways
27 Sep - 01 Oct	Malaysia Airlines
16 Sep - 07 Oct	Qatar Airways
27 Sep - 15 Oct	easyJet

Also check the deals for one-way flights from Geneva 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 Geneva to Bangkok in September from $782

Return flights