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

Return flights

30 Jan - 04 Feb	Ryanair
28 Jan - 09 Feb	Wizz Air UK
30 Jan - 03 Feb	Ryanair
28 Jan - 02 Feb	Wizz Air UK
26 Jan - 02 Feb	Ryanair
19 Jan - 25 Jan	Ryanair
18 Jan - 25 Jan	Wizz Air
23 Jan - 25 Jan	Ryanair
19 Jan - 24 Jan	Ryanair
21 Jan - 26 Jan	Wizz Air UK
19 Jan - 26 Jan	Ryanair
24 Jan - 27 Jan	easyJet
25 Jan - 02 Feb	Wizz Air
19 Jan - 22 Jan	Ryanair
19 Jan - 27 Jan	Ryanair
19 Jan - 30 Jan	Ryanair
27 Jan - 03 Feb	Ryanair
30 Jan - 01 Feb	Ryanair
28 Jan - 04 Feb	Wizz Air UK
26 Jan - 27 Feb	Ryanair

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 $218

Return flights