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

Return flights

15 Sep - 22 Sep	IndiGo
16 Sep - 25 Sep	Air Arabia
09 Sep - 20 Sep	Air Arabia
16 Sep - 21 Sep	IndiGo
18 Sep - 24 Sep	IndiGo
15 Sep - 28 Sep	Air India
14 Sep - 22 Sep	Air India
09 Sep - 15 Sep	Air India
14 Sep - 21 Sep	Air India
29 Sep - 06 Oct	Air India
07 Sep - 15 Sep	Air India
22 Sep - 06 Oct	Air India
22 Sep - 27 Oct	Air Arabia
06 Sep - 07 Oct	Etihad Airways
24 Sep - 01 Oct	IndiGo
29 Sep - 01 Oct	IndiGo
25 Sep - 09 Oct	IndiGo
17 Sep - 16 Oct	Thai Lion Air
23 Sep - 07 Oct	Etihad Airways
26 Sep - 10 Oct	IndiGo

Also check the deals for one-way flights from Bangkok to Zurich 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 Zurich in September from $544

Return flights