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

Return flights

16 Oct - 24 Oct	Air China
14 Oct - 17 Oct	Air China
14 Oct - 19 Oct	Air China
23 Oct - 29 Oct	Air China
21 Oct - 24 Oct	Air China
16 Oct - 22 Oct	Air China
23 Oct - 31 Oct	Air China
28 Oct - 31 Oct	Air China
18 Oct - 24 Oct	Air China
30 Oct - 07 Nov	Air China
25 Oct - 02 Nov	Air China
25 Oct - 05 Nov	Air China
21 Oct - 12 Nov	Air China
14 Oct - 24 Oct	Air China
28 Oct - 17 Nov	Sichuan Airlines
27 Oct - 12 Nov	China Southern
22 Oct - 01 Nov	China Southern
29 Oct - 03 Nov	China Southern
29 Oct - 01 Nov	China Southern
31 Oct - 10 Nov	China Southern

Also check the deals for one-way flights from Osaka to Istanbul in October.

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 October from $487

Return flights