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

Return flights

08 Sep - 16 Sep	Lufthansa
28 Sep - 05 Oct	Japan Airlines
20 Sep - 23 Sep	Lufthansa
06 Sep - 14 Sep	Lufthansa
10 Sep - 19 Sep	Lufthansa
09 Sep - 23 Sep	ANA
06 Sep - 19 Sep	Lufthansa
29 Sep - 09 Oct	Qatar Airways
19 Sep - 22 Sep	Lufthansa
12 Sep - 21 Sep	Lufthansa
20 Sep - 26 Sep	Lufthansa
15 Sep - 26 Sep	ANA

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 1745€

Return flights