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

Return flights

09 Sep - 23 Sep	ITA Airways
24 Sep - 01 Oct	Lufthansa
01 Sep - 17 Sep	Lufthansa
01 Sep - 16 Sep	Lufthansa
10 Sep - 19 Sep	Lufthansa
18 Sep - 26 Sep	Japan Airlines
05 Sep - 13 Sep	Lufthansa
05 Sep - 12 Sep	Lufthansa
28 Sep - 08 Oct	Japan Airlines
06 Sep - 12 Sep	Lufthansa
06 Sep - 19 Sep	Lufthansa
01 Sep - 15 Sep	Lufthansa
21 Sep - 05 Oct	Japan Airlines
21 Sep - 04 Oct	Lufthansa

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 $1710

Return flights