Cheapest return flights from Frankfurt to Keflavik in December from 245€

Best time to book flights for Frankfurt (FRA) to Keflavik (KEF) flights at AirHint

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

Return flights

12 Dec - 16 Dec Ryanair
23 Dec - 31 Dec LOT
22 Dec - 26 Dec Ryanair
08 Dec - 22 Dec Ryanair
12 Dec - 22 Dec Ryanair
13 Dec - 22 Dec Ryanair
15 Dec - 22 Dec Ryanair
14 Dec - 21 Dec Ryanair
12 Dec - 21 Dec Ryanair
13 Dec - 21 Dec Ryanair
22 Dec - 01 Jan Ryanair
27 Dec - 05 Jan Ryanair
27 Dec - 04 Jan Ryanair
28 Dec - 04 Jan Ryanair
26 Dec - 02 Jan Ryanair
24 Dec - 01 Jan Icelandair direct
23 Dec - 01 Jan Icelandair direct
22 Dec - 01 Jan Icelandair direct
26 Dec - 02 Jan Icelandair direct
28 Dec - 04 Jan Icelandair direct

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

Skyscanner

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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