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

Return flights

04 Sep - 11 Sep	China Eastern
16 Sep - 24 Sep	China Eastern
18 Sep - 20 Sep	China Eastern
01 Sep - 15 Sep	Peach
03 Sep - 14 Sep	Eastar Jet
11 Sep - 18 Sep	China Southern
11 Sep - 19 Sep	China Southern
23 Sep - 26 Sep	Singapore Airlines
14 Sep - 18 Sep	Singapore Airlines
14 Sep - 17 Sep	Singapore Airlines
24 Sep - 08 Oct	Singapore Airlines
27 Sep - 04 Oct	Emirates
25 Sep - 02 Oct	China Southern

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 648€

Return flights