Cheapest return flights from Bangkok to Keflavik in December from $1003

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

Return flights

28 Dec - 05 Jan Finnair
04 Dec - 12 Dec Finnair
22 Dec - 04 Jan Finnair
04 Dec - 05 Dec Scandinavian Airlines
28 Dec - 04 Jan Finnair
27 Dec - 04 Jan Finnair
28 Dec - 03 Jan Finnair
28 Dec - 02 Jan Finnair
21 Dec - 02 Jan Finnair

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

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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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