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

Return flights

22 Oct - 28 Oct	SKY express
22 Oct - 08 Nov	SKY express
22 Oct - 26 Oct	SKY express
30 Oct - 06 Nov	Wizz Air Malta
16 Oct - 27 Oct	Ryanair
23 Oct - 30 Oct	Ryanair
21 Oct - 27 Oct	easyJet
23 Oct - 28 Oct	Ryanair
30 Oct - 05 Nov	easyJet
08 Oct - 16 Oct	Ryanair
14 Oct - 21 Oct	easyJet
30 Oct - 03 Nov	easyJet
10 Oct - 16 Oct	Ryanair
15 Oct - 21 Oct	Ryanair
23 Oct - 01 Nov	Ryanair
28 Oct - 03 Nov	Ryanair
28 Oct - 02 Nov	Ryanair
28 Oct - 08 Nov	Ryanair
25 Oct - 02 Nov	Wizz Air Malta
27 Oct - 04 Nov	Wizz Air UK

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 197€

Return flights