Cheapest return flights from Keflavik to Copenhagen in December from $165

Best time to book flights for Keflavik (KEF) to Copenhagen (CPH) flights at AirHint

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

Return flights

05 Dec - 08 Dec Fly Play direct
06 Dec - 09 Dec Fly Play direct
17 Dec - 20 Dec Fly Play direct
02 Dec - 05 Dec Fly Play direct
07 Dec - 10 Dec Fly Play direct
08 Dec - 11 Dec Fly Play direct
09 Dec - 12 Dec Fly Play direct
10 Dec - 13 Dec Fly Play direct
11 Dec - 14 Dec Fly Play direct
03 Dec - 06 Dec Fly Play direct
14 Dec - 04 Jan Fly Play direct

Also check the deals for one-way flights from Keflavik to Copenhagen 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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