Cheapest return flights from Keflavik to Athens in September from 249€

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

Return flights

10 Sep - 18 Sep KLM
28 Sep - 01 Oct Wizz Air
03 Sep - 10 Sep KLM
08 Sep - 10 Sep KLM
08 Sep - 16 Sep KLM
15 Sep - 03 Oct Scandinavian Airlines
20 Sep - 30 Sep Wizz Air
21 Sep - 30 Sep Fly Play
04 Sep - 20 Sep Fly Play
19 Sep - 26 Sep Fly Play
05 Sep - 07 Sep Eurowings
02 Sep - 14 Sep Wizz Air Malta

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