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

Return flights

22 Sep - 29 Sep	Pegasus Airlines	direct
10 Sep - 14 Sep	Pegasus Airlines	direct
08 Sep - 12 Sep	Pegasus Airlines	direct
03 Sep - 05 Sep	Pegasus Airlines	direct
02 Sep - 07 Sep	Pegasus Airlines	direct
12 Sep - 16 Sep	Hahn Air Technologies
07 Sep - 11 Sep	Air Astana

Also check the deals for one-way flights from Osh to Istanbul in September.

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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Cheapest return flights from Osh to Istanbul in September from $362

Return flights