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

Return flights

28 Aug - 02 Sep	Wizz Air Malta
27 Aug - 02 Sep	Wizz Air
26 Aug - 02 Sep	Scandinavian Airlines
28 Aug - 01 Sep	Wizz Air Malta
31 Aug - 07 Sep	SKY express
23 Aug - 28 Aug	Wizz Air
14 Aug - 28 Aug	Wizz Air UK
21 Aug - 24 Aug	Wizz Air Malta
18 Aug - 28 Aug	Aegean Airlines
31 Aug - 09 Sep	Volotea
28 Aug - 31 Aug	Wizz Air Malta
13 Aug - 19 Aug	Ryanair
20 Aug - 31 Aug	Scandinavian Airlines
20 Aug - 28 Aug	Volotea
14 Aug - 19 Aug	Wizz Air UK
23 Aug - 31 Aug	Wizz Air
31 Aug - 14 Sep	Vueling Airlines

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Athens to Keflavik in August from 285€

Return flights