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

One-Way flights

03 Dec	Iberia
05 Dec	Vueling Airlines
01 Dec	China Eastern
04 Dec	Vueling Airlines
10 Dec	Vueling Airlines
06 Dec	Vueling Airlines
29 Dec	Shenzhen Airlines
07 Dec	Vueling Airlines
02 Dec	China Southern
08 Dec	Shenzhen Airlines

Also check the deals for return 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 one-way flights from London to Osaka in December from $422

One-Way flights