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

Return flights

29 Sep - 28 Oct	Japan Airlines
29 Sep - 10 Oct	Japan Airlines
29 Sep - 27 Oct	Japan Airlines
29 Sep - 26 Oct	Japan Airlines
20 Sep - 23 Sep	Japan Airlines
30 Sep - 30 Oct	Japan Airlines
20 Sep - 28 Sep	Japan Airlines
28 Sep - 04 Oct	Japan Airlines
28 Sep - 05 Oct	Japan Airlines
21 Sep - 29 Sep	Japan Airlines
11 Sep - 17 Sep	British Airways
10 Sep - 17 Sep	British Airways
29 Sep - 06 Oct	British Airways
04 Sep - 08 Sep	British Airways
11 Sep - 16 Sep	British Airways
27 Sep - 04 Oct	Japan Airlines
27 Sep - 02 Oct	Japan Airlines
03 Sep - 08 Sep	British Airways
01 Sep - 07 Sep	British Airways
18 Sep - 21 Sep	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 1005€

Return flights