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

Return flights

04 Dec - 08 Dec	easyJet
05 Dec - 08 Dec	easyJet
05 Dec - 09 Dec	easyJet
05 Dec - 09 Dec	Icelandair	direct
26 Dec - 02 Jan	easyJet
05 Dec - 08 Dec	Icelandair	direct
22 Dec - 05 Jan	Wizz Air Malta
26 Dec - 02 Jan	Icelandair	direct
24 Dec - 31 Dec	Icelandair	direct
22 Dec - 05 Jan	Icelandair	direct
04 Dec - 08 Dec	Icelandair	direct
20 Dec - 27 Dec	Icelandair	direct

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

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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Cheapest return flights from Reykjavik to Frankfurt in December from $199

Return flights