AirHint found the following cheapest return flights from Osaka (KIX) to Istanbul (IST) in May 2026 (see full year).

Return flights

09 May - 17 May	Air China
09 May - 20 May	Air China
13 May - 20 May	Air China
18 May - 27 May	Air China
12 May - 20 May	Air China
12 May - 19 May	Air China
13 May - 26 May	Air China
11 May - 14 May	Air China
20 May - 26 May	Air China
13 May - 22 May	Air China
25 May - 03 Jun	Air China
27 May - 04 Jun	Air China
23 May - 02 Jun	Air China
26 May - 04 Jun	Air China
17 May - 01 Jun	Singapore Airlines
15 May - 01 Jun	Singapore Airlines
16 May - 01 Jun	Singapore Airlines
25 May - 01 Jun	China Southern
09 May - 10 Jun	China Southern
28 May - 07 Jun	Air China

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

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 May from $608

Return flights