Cheapest return flights from Athens to Keflavik in September from $272

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

Return flights

20 Sep - 26 Sep Fly Play direct
23 Sep - 03 Oct easyJet
23 Sep - 26 Sep Fly Play direct
26 Sep - 06 Oct easyJet
25 Sep - 06 Oct easyJet
04 Sep - 08 Sep Scandinavian Airlines
18 Sep - 25 Sep easyJet
27 Sep - 03 Oct Wizz Air
03 Sep - 09 Sep Scandinavian Airlines
18 Sep - 21 Sep Ryanair
18 Sep - 22 Sep Ryanair
13 Sep - 15 Sep Wizz Air
30 Sep - 10 Oct Aegean Airlines
10 Sep - 16 Sep Ryanair
02 Sep - 09 Sep Wizz Air
26 Sep - 03 Oct Ryanair
23 Sep - 03 Oct Fly Play direct
27 Sep - 04 Oct Ryanair

Also check the deals for one-way 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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