Cheapest return flights from Athens to Keflavik in September from 169€

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

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

Return flights

09 Sep - 23 Oct easyJet
30 Sep - 09 Oct easyJet
30 Sep - 08 Oct easyJet
13 Sep - 21 Sep easyJet
17 Sep - 21 Sep easyJet
13 Sep - 20 Sep easyJet
28 Sep - 12 Oct easyJet
11 Sep - 18 Sep easyJet
09 Sep - 17 Sep easyJet
13 Sep - 18 Sep easyJet
11 Sep - 20 Sep easyJet
14 Sep - 21 Sep easyJet
20 Sep - 25 Sep easyJet
16 Sep - 24 Sep Ryanair
29 Sep - 05 Oct easyJet
30 Sep - 06 Oct easyJet
28 Sep - 04 Oct easyJet
27 Sep - 03 Oct easyJet
30 Sep - 10 Oct easyJet
25 Sep - 03 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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