Cheapest one-way flights from Keflavik to Athens in September from $149

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

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

One-Way flights

19 Sep Fly Play
25 Sep Wizz Air Malta
26 Sep Fly Play
19 Sep Fly Play direct
26 Sep Fly Play direct

Also check the deals for return 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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