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

Return flights

05 Sep - 13 Sep	Thai Airways
24 Sep - 30 Sep	ANA
08 Sep - 16 Sep	ANA
06 Sep - 14 Sep	ANA
01 Sep - 14 Sep	Qatar Airways
16 Sep - 27 Sep	Turkish Airlines
10 Sep - 18 Sep	Turkish Airlines
01 Sep - 07 Sep	ANA
15 Sep - 21 Sep	ANA
13 Sep - 28 Sep	ANA
22 Sep - 06 Oct	Turkish Airlines
06 Sep - 02 Oct	ANA
30 Sep - 03 Oct	Turkish Airlines
27 Sep - 11 Oct	Turkish Airlines
19 Sep - 03 Oct	Turkish Airlines

Also check the deals for one-way flights from Istanbul to Osaka 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 Osaka in September from $1179

Return flights