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

Return flights

24 Sep - 09 Oct	Lufthansa
29 Sep - 06 Oct	Japan Airlines
17 Sep - 24 Sep	Lufthansa
27 Sep - 02 Oct	Lufthansa
27 Sep - 03 Oct	Lufthansa
08 Sep - 15 Sep	Japan Airlines
24 Sep - 30 Sep	Lufthansa
09 Sep - 17 Sep	Japan Airlines
15 Sep - 18 Sep	Lufthansa
12 Sep - 22 Sep	Lufthansa
12 Sep - 21 Sep	Lufthansa
28 Sep - 04 Oct	Lufthansa
14 Sep - 22 Sep	Lufthansa
26 Sep - 29 Sep	Lufthansa
15 Sep - 22 Sep	Lufthansa

Also check the deals for one-way flights from Osaka to Lisbon 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 Lisbon in September from 1349€

Return flights