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

Return flights

27 Oct - 05 Nov	Turkish Airlines
20 Oct - 11 Nov	Japan Airlines
15 Oct - 22 Oct	Japan Airlines
16 Oct - 20 Oct	Japan Airlines
29 Oct - 04 Nov	Turkish Airlines
30 Oct - 07 Nov	Turkish Airlines
17 Oct - 21 Oct	Japan Airlines
22 Oct - 27 Oct	Japan Airlines
23 Oct - 27 Oct	Japan Airlines
16 Oct - 22 Oct	Turkish Airlines
06 Oct - 10 Oct	Qatar Airways
20 Oct - 29 Oct	Japan Airlines
27 Oct - 31 Oct	Japan Airlines
18 Oct - 26 Oct	Turkish Airlines
30 Oct - 03 Nov	Turkish Airlines
31 Oct - 03 Nov	Turkish Airlines

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 1296€

Return flights