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

Return flights

30 Jul - 12 Aug	Wizz Air
30 Jul - 05 Aug	Wizz Air
31 Jul - 03 Aug	Wizz Air
31 Jul - 05 Aug	Wizz Air
31 Jul - 06 Aug	Ryanair
23 Jul - 31 Jul	Ryanair
31 Jul - 10 Aug	Wizz Air
08 Jul - 15 Jul	Wizz Air UK
21 Jul - 29 Jul	SKY express
09 Jul - 15 Jul	Wizz Air
10 Jul - 14 Jul	Wizz Air
16 Jul - 19 Jul	Wizz Air
24 Jul - 02 Aug	Wizz Air
09 Jul - 17 Jul	Ryanair
23 Jul - 27 Jul	Wizz Air
23 Jul - 21 Aug	Ryanair
10 Jul - 17 Jul	Ryanair
09 Jul - 19 Jul	Wizz Air
29 Jul - 13 Aug	Ryanair
22 Jul - 02 Aug	Wizz Air

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

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 July from 222€

Return flights