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

Return flights

02 Oct - 07 Oct	Wizz Air
02 Oct - 06 Oct	Wizz Air
02 Oct - 08 Oct	Wizz Air
29 Oct - 08 Nov	SKY express
22 Oct - 27 Oct	Ryanair
23 Oct - 28 Oct	Ryanair
22 Oct - 28 Oct	Ryanair
02 Oct - 05 Oct	Wizz Air
29 Oct - 04 Nov	easyJet
26 Oct - 02 Nov	Wizz Air Malta
22 Oct - 30 Oct	Ryanair
02 Oct - 12 Oct	Wizz Air
23 Oct - 01 Nov	easyJet
09 Oct - 14 Oct	Wizz Air
29 Oct - 06 Nov	SKY express
31 Oct - 02 Nov	Ryanair
23 Oct - 03 Nov	easyJet
28 Oct - 03 Nov	Ryanair
25 Oct - 02 Nov	easyJet
24 Oct - 01 Nov	easyJet

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

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 October from 195€

Return flights