Cheapest return flights from Kos to Athens in September from $102

AirHint found the following cheapest return flights from Kos (KGS) to Athens (ATH) in September 2026 (see full year).

Return flights

20 Sep - 23 Sep SKY express
15 Sep - 23 Sep SKY express direct
15 Sep - 19 Sep SKY express direct
16 Sep - 23 Sep SKY express direct
16 Sep - 19 Sep SKY express direct
19 Sep - 23 Sep SKY express direct
02 Sep - 02 Sep SKY express direct
02 Sep - 05 Sep SKY express direct
02 Sep - 19 Sep SKY express direct
05 Sep - 23 Sep SKY express direct
20 Sep - 10 Oct SKY express
19 Sep - 10 Oct SKY express direct
29 Sep - 10 Oct SKY express direct
20 Sep - 10 Oct SKY express direct

Also check the deals for one-way flights from Kos to Athens in September.

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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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