Cheapest return flights from Bangkok to Keflavik in December from $840

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

Return flights

23 Dec - 04 Jan Norse Atlantic Airways (UK)
22 Dec - 04 Jan Norse Atlantic Airways (UK)
23 Dec - 05 Jan Finnair
04 Dec - 07 Dec Norse Atlantic Airways (UK)
25 Dec - 03 Jan Finnair
12 Dec - 24 Dec Finnair
14 Dec - 01 Jan Norse Atlantic Airways
13 Dec - 02 Jan British Airways
18 Dec - 26 Dec Finnair
27 Dec - 03 Jan Scandinavian Airlines

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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