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

Return flights

03 Dec - 11 Dec	Air China
03 Dec - 10 Dec	China Southern
02 Dec - 06 Dec	Air China
03 Dec - 13 Dec	Air China
01 Dec - 13 Dec	Air China
02 Dec - 14 Dec	Air China
01 Dec - 14 Dec	Air China
01 Dec - 18 Dec	Air China
02 Dec - 16 Dec	Air China
01 Dec - 16 Dec	Air China
31 Dec - 28 Jan	China Southern
25 Dec - 19 Jan	Lufthansa
07 Dec - 11 Jan	KLM
08 Dec - 11 Jan	KLM
09 Dec - 11 Jan	KLM
10 Dec - 11 Jan	KLM
27 Dec - 09 Jan	China Southern
26 Dec - 14 Jan	KLM
05 Dec - 04 Jan	Air China
21 Dec - 04 Jan	Asiana Airlines

Also check the deals for one-way flights from London to Osaka 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 Osaka in December from $708

Return flights