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

Return flights

01 Dec - 09 Dec	Oman Air
01 Dec - 07 Dec	Oman Air
29 Dec - 12 Jan	Air India
03 Dec - 10 Dec	Oman Air
04 Dec - 09 Dec	Oman Air
03 Dec - 09 Dec	Oman Air
03 Dec - 08 Dec	Oman Air
26 Dec - 04 Jan	Air India
20 Dec - 04 Jan	Air India
19 Dec - 05 Jan	Air India
20 Dec - 05 Jan	Air India
23 Dec - 05 Jan	Air India
19 Dec - 03 Jan	Air India
13 Dec - 03 Jan	Air India
12 Dec - 03 Jan	Air India
12 Dec - 09 Jan	Air India
03 Dec - 14 Dec	Oman Air
01 Dec - 14 Dec	Oman Air
02 Dec - 16 Dec	Oman Air
03 Dec - 17 Dec	Oman Air

Also check the deals for one-way flights from Bangkok to Zurich in December.

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 December from $609

Return flights