Cheapest one-way flights from Athens to Keflavik in September from $94

Best time to book flights for Athens (ATH) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from Athens (ATH) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

30 Sep easyJet
13 Sep easyJet
27 Sep easyJet
02 Sep Scandinavian Airlines
03 Sep Scandinavian Airlines
01 Sep Scandinavian Airlines
14 Sep easyJet
25 Sep Ryanair
02 Sep Fly Play direct
13 Sep Fly Play direct

Also check the deals for return flights from Athens to Keflavik in September.

Skyscanner

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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