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

Return flights

28 Sep - 05 Oct	AJet
08 Sep - 14 Sep	AJet
08 Sep - 15 Sep	AJet
09 Sep - 10 Sep	AJet
19 Sep - 27 Sep	AJet
01 Sep - 12 Sep	AJet
28 Sep - 05 Oct	Pegasus Airlines	direct
20 Sep - 28 Sep	Pegasus Airlines	direct
08 Sep - 15 Sep	Turkish Airlines	direct
09 Sep - 09 Sep	Air Arabia Abu Dhabi
07 Sep - 13 Sep	Pegasus Airlines	direct
08 Sep - 14 Sep	Pegasus Airlines	direct

Also check the deals for one-way flights from Istanbul to Bishkek 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 Istanbul to Bishkek in September from $324

Return flights