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

Return flights

22 Sep - 15 Oct	Hainan Airlines
03 Sep - 07 Oct	China Eastern
23 Sep - 21 Oct	Air China
22 Sep - 20 Oct	Air China
15 Sep - 13 Oct	Air China
18 Sep - 24 Oct	Air China
02 Sep - 20 Oct	Air China
23 Sep - 15 Oct	Air China
18 Sep - 16 Oct	Air China
21 Sep - 20 Oct	Air China
03 Sep - 10 Sep	China Southern
02 Sep - 16 Sep	China Eastern
01 Sep - 21 Sep	China Eastern
08 Sep - 16 Sep	China Eastern
16 Sep - 20 Sep	China Eastern
11 Sep - 16 Sep	China Eastern
11 Sep - 27 Sep	China Eastern
17 Sep - 27 Sep	China Eastern
04 Sep - 21 Sep	China Eastern
08 Sep - 20 Sep	China Eastern

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 550€

Return flights