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

Return flights

11 Sep - 16 Sep	China Eastern
07 Sep - 19 Sep	Air China
06 Sep - 19 Sep	Scoot Tigerair
07 Sep - 15 Sep	Scoot Tigerair
21 Sep - 27 Sep	Air China
27 Sep - 05 Oct	Scoot Tigerair
01 Sep - 05 Sep	Singapore Airlines
14 Sep - 21 Sep	Scoot Tigerair
25 Sep - 03 Oct	Scoot Tigerair
28 Sep - 12 Oct	Scoot Tigerair
09 Sep - 16 Sep	Singapore Airlines
10 Sep - 15 Sep	Juneyao Airlines
13 Sep - 22 Sep	Scoot Tigerair
26 Sep - 03 Oct	Singapore Airlines
30 Sep - 07 Oct	Singapore Airlines

Also check the deals for one-way flights from Osaka to Athens 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 Athens in September from 679€

Return flights