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

Return flights

03 Sep - 30 Sep	Japan Airlines
16 Sep - 23 Sep	Japan Airlines
20 Sep - 02 Oct	Japan Airlines
15 Sep - 22 Sep	Japan Airlines
18 Sep - 25 Sep	Japan Airlines
22 Sep - 30 Sep	Japan Airlines
23 Sep - 30 Sep	Japan Airlines
20 Sep - 27 Sep	Japan Airlines
02 Sep - 30 Sep	Japan Airlines
30 Sep - 09 Oct	Japan Airlines
27 Sep - 04 Oct	Japan Airlines
16 Sep - 22 Sep	Japan Airlines
23 Sep - 01 Oct	Japan Airlines
09 Sep - 18 Sep	Japan Airlines
26 Sep - 09 Oct	Lufthansa
19 Sep - 03 Oct	Lufthansa
14 Sep - 05 Oct	British Airways

Also check the deals for one-way flights from Osaka to London 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 London in September from $1057

Return flights