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

Return flights

02 Sep - 18 Sep	T'way Air
09 Sep - 11 Sep	Jin Air
11 Sep - 14 Sep	Air China
16 Sep - 26 Sep	Air China
16 Sep - 21 Sep	Air China
18 Sep - 28 Sep	Air China
11 Sep - 19 Sep	Air China
11 Sep - 21 Sep	Sichuan Airlines
23 Sep - 30 Sep	Peach
24 Sep - 29 Sep	Aero K Airlines
29 Sep - 06 Oct	Hong Kong Airlines
15 Sep - 05 Oct	Thai Airways
27 Sep - 03 Oct	Singapore Airlines
23 Sep - 02 Oct	Thai Airways
30 Sep - 08 Oct	ANA
28 Sep - 04 Oct	China Southern
26 Sep - 04 Oct	Emirates
25 Sep - 03 Oct	Emirates
23 Sep - 01 Oct	Emirates
13 Sep - 05 Oct	KLM

Also check the deals for one-way flights from Osaka 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 Osaka to Istanbul in September from 528€

Return flights