Cheapest return flights from Istanbul to Athens in September from $141

Best time to book flights for Istanbul (IST) to Athens (ATH) flights at AirHint

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

Return flights

28 Sep - 16 Oct SKY express direct
21 Sep - 24 Sep SKY express direct
21 Sep - 23 Sep SKY express direct
16 Sep - 24 Sep SKY express direct
16 Sep - 23 Sep SKY express direct
16 Sep - 19 Sep SKY express direct
16 Sep - 17 Sep SKY express direct
08 Sep - 24 Sep SKY express direct
08 Sep - 16 Sep SKY express direct
08 Sep - 23 Sep SKY express direct
08 Sep - 12 Sep SKY express direct
21 Sep - 12 Oct SKY express direct
21 Sep - 08 Oct SKY express direct
21 Sep - 07 Oct SKY express direct
21 Sep - 06 Oct SKY express direct
21 Sep - 02 Oct SKY express direct
28 Sep - 12 Oct SKY express direct
28 Sep - 08 Oct SKY express direct
28 Sep - 07 Oct SKY express direct
28 Sep - 06 Oct SKY express direct

Also check the deals for one-way flights from Istanbul 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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