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

Return flights

18 Sep - 25 Sep	Thai VietJet Air
22 Sep - 29 Sep	Air Arabia
08 Sep - 15 Sep	China Eastern
23 Sep - 30 Sep	Air Arabia
11 Sep - 18 Sep	Thai VietJet Air
10 Sep - 17 Sep	China Eastern
17 Sep - 24 Sep	China Eastern
08 Sep - 12 Sep	Thai Lion Air
03 Sep - 10 Sep	China Eastern
05 Sep - 12 Sep	Air China
29 Sep - 06 Oct	Thai AirAsia
30 Sep - 07 Oct	Saudia
25 Sep - 02 Oct	Air India
28 Sep - 05 Oct	Thai VietJet Air
24 Sep - 01 Oct	Thai VietJet Air
26 Sep - 03 Oct	Thai VietJet Air
27 Sep - 04 Oct	Thai VietJet Air

Also check the deals for one-way flights from Bangkok to Geneva 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 Bangkok to Geneva in September from $593

Return flights