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

Return flights

30 Dec - 21 Jan	China Eastern
30 Dec - 20 Jan	China Eastern
31 Dec - 23 Jan	China Eastern
29 Dec - 21 Jan	China Eastern
31 Dec - 29 Jan	Air China
31 Dec - 14 Jan	Air China
28 Dec - 21 Jan	China Eastern
30 Dec - 27 Jan	China Eastern
29 Dec - 29 Jan	Air China
30 Dec - 29 Jan	Air China
29 Dec - 31 Dec	China Eastern
28 Dec - 31 Dec	Scandinavian Airlines
28 Dec - 30 Dec	Air France
29 Dec - 30 Dec	Lufthansa
29 Dec - 30 Dec	Japan Airlines	direct
29 Dec - 31 Dec	Japan Airlines	direct
28 Dec - 29 Dec	Japan Airlines	direct

Also check the deals for one-way flights from London to Tokyo in December.

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 December from 664€

Return flights