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

Return flights

24 Sep - 20 Oct	Air China
16 Sep - 22 Oct	Air China
02 Sep - 16 Oct	Air China
10 Sep - 15 Oct	Air China
03 Sep - 09 Sep	Air China
02 Sep - 08 Sep	Air China
02 Sep - 09 Sep	Air China
02 Sep - 07 Sep	Air China
08 Sep - 12 Oct	China Southern
15 Sep - 05 Oct	China Southern
08 Sep - 15 Oct	China Southern
15 Sep - 10 Oct	China Southern
09 Sep - 01 Oct	Air China
03 Sep - 01 Oct	Air China
03 Sep - 07 Sep	Air China
11 Sep - 22 Sep	Air China
18 Sep - 22 Sep	Air China
10 Sep - 22 Sep	Air China
16 Sep - 30 Sep	Air China
10 Sep - 30 Sep	Air China

Also check the deals for one-way flights from London to Tokyo 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 London to Tokyo in September from 548€

Return flights