Cheapest return flights from Athens to Istanbul in September from 93€

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

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

Return flights

04 Sep - 07 Oct Pegasus Airlines direct
25 Sep - 11 Oct SKY express direct
22 Sep - 11 Oct SKY express direct
23 Sep - 11 Oct SKY express direct
17 Sep - 21 Sep Pegasus Airlines direct
17 Sep - 22 Sep Pegasus Airlines direct
21 Sep - 11 Oct SKY express direct
24 Sep - 11 Oct SKY express direct
30 Sep - 11 Oct SKY express direct
12 Sep - 16 Sep Pegasus Airlines direct
29 Sep - 06 Oct Pegasus Airlines direct
29 Sep - 03 Oct Pegasus Airlines direct
25 Sep - 06 Oct SKY express direct
23 Sep - 29 Sep Pegasus Airlines direct
17 Sep - 20 Sep Pegasus Airlines direct
19 Sep - 22 Sep Pegasus Airlines direct
21 Sep - 23 Sep Air Serbia
20 Sep - 23 Sep Air Serbia
20 Sep - 23 Sep Pegasus Airlines direct
26 Sep - 28 Sep Air Serbia

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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