Cheapest return flights from Athens to Istanbul in September from $108

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

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

Return flights

25 Sep - 30 Sep Pegasus Airlines direct
24 Sep - 29 Sep Pegasus Airlines direct
17 Sep - 22 Sep Pegasus Airlines direct
20 Sep - 22 Sep Pegasus Airlines direct
22 Sep - 23 Sep Pegasus Airlines direct
23 Sep - 25 Sep Pegasus Airlines direct
11 Sep - 15 Sep Pegasus Airlines direct
26 Sep - 29 Sep Pegasus Airlines direct
10 Sep - 13 Sep Pegasus Airlines direct
05 Sep - 09 Sep Pegasus Airlines direct

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