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

Return flights

06 Dec - 13 Dec	easyJet
01 Dec - 06 Dec	easyJet
05 Dec - 16 Dec	easyJet
05 Dec - 15 Dec	easyJet
05 Dec - 13 Dec	easyJet
07 Dec - 20 Dec	Wizz Air
05 Dec - 11 Dec	KLM
05 Dec - 14 Dec	easyJet
05 Dec - 12 Dec	easyJet
06 Dec - 20 Dec	Wizz Air
24 Dec - 08 Jan	KLM
23 Dec - 01 Jan	Scandinavian Airlines
22 Dec - 05 Jan	Scandinavian Airlines
23 Dec - 04 Jan	Scandinavian Airlines
18 Dec - 03 Jan	easyJet

Also check the deals for one-way flights from Reykjavik to Athens 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 Athens in December from $209

Return flights