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

One-Way flights

29 Sep	Thai VietJet Air
20 Sep	Thai VietJet Air
08 Sep	Thai VietJet Air
13 Sep	Thai VietJet Air
15 Sep	Thai VietJet Air
28 Sep	Thai Lion Air
16 Sep	Thai Lion Air
25 Sep	Thai Lion Air
09 Sep	IndiGo
21 Sep	IndiGo

Also check the deals for return 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 one-way flights from Bangkok to Zurich in September from $272

One-Way flights