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

Return flights

05 Aug - 30 Sep	Japan Airlines
26 Aug - 31 Aug	Japan Airlines
13 Aug - 25 Aug	Japan Airlines
13 Aug - 26 Aug	Japan Airlines
10 Aug - 26 Aug	Japan Airlines
13 Aug - 27 Aug	Lufthansa
23 Aug - 31 Aug	Japan Airlines
05 Aug - 10 Sep	Japan Airlines
13 Aug - 24 Aug	Japan Airlines
19 Aug - 26 Aug	Japan Airlines
14 Aug - 26 Aug	Japan Airlines
18 Aug - 26 Aug	Japan Airlines
07 Aug - 10 Sep	British Airways
24 Aug - 23 Sep	Japan Airlines
26 Aug - 01 Sep	Japan Airlines
26 Aug - 02 Sep	Japan Airlines
21 Aug - 04 Sep	British Airways
22 Aug - 23 Sep	Japan Airlines
21 Aug - 23 Sep	Japan Airlines
28 Aug - 06 Sep	British Airways

Also check the deals for one-way flights from Osaka to London in August.

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 August from $1379

Return flights