Cheapest return flights from Athens to Keflavik in December from $211

Best time to book flights for Athens (ATH) to Keflavik (KEF) flights at AirHint

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

Return flights

11 Dec - 17 Dec easyJet
12 Dec - 17 Dec easyJet
08 Dec - 12 Dec Wizz Air UK
05 Dec - 13 Dec easyJet
08 Dec - 14 Dec easyJet
01 Dec - 10 Dec Aegean Airlines
02 Dec - 08 Dec Ryanair
02 Dec - 12 Dec Ryanair
26 Dec - 01 Jan Wizz Air UK
21 Dec - 26 Dec easyJet
24 Dec - 30 Dec Aegean Airlines
27 Dec - 07 Jan Scandinavian Airlines
30 Dec - 05 Jan Scandinavian Airlines
30 Dec - 04 Jan Scandinavian Airlines
25 Dec - 01 Jan Wizz Air
23 Dec - 03 Jan British Airways
28 Dec - 03 Jan Wizz Air UK
29 Dec - 03 Jan Wizz Air Malta
27 Dec - 02 Jan Ryanair
25 Dec - 03 Jan Wizz Air

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