Cheapest return flights from Athens to Istanbul in September from $105

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

Return flights

03 Sep - 09 Sep Pegasus Airlines direct
05 Sep - 09 Sep Pegasus Airlines direct
08 Sep - 11 Sep Pegasus Airlines direct
09 Sep - 16 Sep Pegasus Airlines direct
06 Sep - 23 Sep Pegasus Airlines direct
09 Sep - 11 Sep Pegasus Airlines direct
05 Sep - 14 Sep Pegasus Airlines direct
09 Sep - 12 Sep Pegasus Airlines direct
05 Sep - 08 Sep Pegasus Airlines direct
12 Sep - 15 Sep Pegasus Airlines direct
24 Sep - 01 Oct Sichuan Airlines direct
26 Sep - 01 Oct Pegasus Airlines direct
29 Sep - 04 Oct Pegasus Airlines direct
17 Sep - 02 Oct SKY express direct
17 Sep - 03 Oct SKY express direct
12 Sep - 02 Oct SKY express direct
29 Sep - 13 Oct SKY express direct
29 Sep - 14 Oct SKY express direct
29 Sep - 09 Oct SKY express direct
26 Sep - 13 Oct SKY express direct

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