Cheapest return FRA–KEF flights, December

AirHint found the following cheapest return flights from Frankfurt (FRA) to Keflavik (KEF) in December 2026 (see full year).

Return flights

25 Dec - 01 Jan LOT
21 Dec - 25 Dec Icelandair direct
19 Dec - 06 Jan Lufthansa
20 Dec - 05 Jan Lufthansa
25 Dec - 01 Jan Icelandair direct
19 Dec - 06 Jan Icelandair direct
20 Dec - 05 Jan Icelandair direct

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

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