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

Return flights

03 Dec - 14 Dec	AJet
03 Dec - 13 Dec	AJet
14 Dec - 24 Dec	AJet
01 Dec - 20 Dec	Pegasus Airlines
01 Dec - 16 Dec	Pegasus Airlines
05 Dec - 23 Dec	AJet
09 Dec - 20 Dec	easyJet
02 Dec - 16 Dec	Pegasus Airlines
04 Dec - 16 Dec	AJet
01 Dec - 08 Dec	Pegasus Airlines
14 Dec - 10 Jan	AJet
15 Dec - 14 Jan	Wizz Air
15 Dec - 12 Jan	Wizz Air
12 Dec - 12 Jan	Wizz Air
13 Dec - 17 Jan	AJet
15 Dec - 10 Jan	Wizz Air
13 Dec - 24 Jan	AJet
15 Dec - 15 Jan	Wizz Air
12 Dec - 10 Jan	AJet
29 Dec - 12 Jan	Pegasus Airlines

Also check the deals for one-way flights from Basel to Bangkok 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 Basel to Bangkok in December from $548

Return flights