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

Return flights

31 Aug - 29 Sep	transavia
21 Aug - 11 Sep	Fly Play
20 Aug - 27 Aug	Wizz Air
21 Aug - 28 Aug	Wizz Air
25 Aug - 06 Sep	Fly Play
13 Aug - 25 Aug	Fly Play
12 Aug - 26 Aug	Wizz Air
20 Aug - 04 Sep	Finnair
09 Aug - 20 Sep	easyJet
11 Aug - 26 Aug	Fly Play
24 Aug - 07 Sep	Finnair
04 Aug - 11 Aug	Fly Play
15 Aug - 17 Aug	Finnair

Also check the deals for one-way flights from Reykjavik to Bangkok in August.

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 August from $921

Return flights