Cheapest one-way flights from Athens to Istanbul in September from $46

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

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

One-Way flights

27 Sep Pegasus Airlines direct
18 Sep Pegasus Airlines direct
10 Sep Pegasus Airlines direct
20 Sep Pegasus Airlines direct
19 Sep Pegasus Airlines direct
21 Sep Pegasus Airlines direct
17 Sep Pegasus Airlines direct
15 Sep Pegasus Airlines direct
25 Sep Pegasus Airlines direct
26 Sep Pegasus Airlines direct

Also check the deals for return 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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