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

Return flights

02 Dec - 17 Dec	Wizz Air
04 Dec - 17 Jan	easyJet
10 Dec - 17 Dec	Wizz Air
08 Dec - 24 Dec	Wizz Air
08 Dec - 31 Dec	Wizz Air
11 Dec - 31 Dec	Wizz Air
12 Dec - 31 Dec	easyJet
13 Dec - 15 Dec	Transavia France
20 Dec - 29 Jan	Finnair
22 Dec - 11 Jan	Wizz Air
12 Dec - 04 Jan	easyJet
12 Dec - 01 Jan	easyJet
21 Dec - 04 Jan	transavia
22 Dec - 02 Jan	Transavia France
27 Dec - 03 Jan	Wizz Air
20 Dec - 04 Jan	easyJet
20 Dec - 03 Jan	easyJet

Also check the deals for one-way flights from Reykjavik 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 Reykjavik to Bangkok in December from $814

Return flights