Cheapest return flights from Keflavik to Athens in September from 666€

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

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

Return flights

09 Sep - 14 Sep Vueling Airlines

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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