Cheapest return ATH–KEF flights, December

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

Return flights

10 Dec - 17 Dec easyJet
10 Dec - 15 Dec easyJet
05 Dec - 10 Dec Wizz Air UK
15 Dec - 18 Dec Aegean Airlines
07 Dec - 13 Dec Aegean Airlines
16 Dec - 23 Dec easyJet
05 Dec - 11 Dec Ryanair
11 Dec - 19 Dec easyJet
23 Dec - 31 Dec Wizz Air
14 Dec - 20 Dec SKY express
24 Dec - 01 Jan Aegean Airlines

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

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