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

Return flights

16 Sep - 21 Sep	IndiGo
17 Sep - 22 Sep	IndiGo
04 Sep - 13 Sep	Etihad Airways
21 Sep - 25 Sep	Condor
21 Sep - 30 Sep	Condor
23 Sep - 30 Sep	Condor
04 Sep - 11 Sep	Etihad Airways
01 Sep - 14 Sep	Etihad Airways
01 Sep - 07 Sep	Etihad Airways
21 Sep - 28 Sep	IndiGo
22 Sep - 07 Oct	IndiGo
16 Sep - 01 Oct	IndiGo
22 Sep - 01 Oct	IndiGo
22 Sep - 06 Oct	IndiGo
15 Sep - 06 Oct	Etihad Airways
26 Sep - 06 Oct	Etihad Airways
17 Sep - 18 Oct	IndiGo
11 Sep - 02 Oct	Etihad Airways
25 Sep - 05 Oct	IndiGo
26 Sep - 03 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 529€

Return flights