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

Return flights

12 Jan - 18 Jan	Wizz Air UK
26 Jan - 30 Jan	Wizz Air UK
12 Jan - 23 Jan	Wizz Air UK
12 Jan - 16 Jan	Wizz Air UK
12 Jan - 20 Jan	Wizz Air UK
19 Jan - 25 Jan	Wizz Air UK
14 Jan - 18 Jan	Wizz Air
18 Jan - 22 Jan	Wizz Air UK
17 Jan - 21 Jan	easyJet
28 Jan - 04 Feb	easyJet
23 Jan - 30 Jan	easyJet
21 Jan - 08 Feb	Wizz Air UK
23 Jan - 02 Feb	easyJet
30 Jan - 02 Feb	Wizz Air
28 Jan - 01 Feb	easyJet
31 Jan - 05 Feb	SKY express
31 Jan - 08 Feb	Ryanair
23 Jan - 01 Feb	SKY express
23 Jan - 27 Feb	easyJet
29 Jan - 01 Feb	easyJet

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

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 Athens to Keflavik in January from $157

Return flights