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

Return flights

10 Dec - 21 Dec	KLM
09 Dec - 21 Dec	KLM
08 Dec - 21 Dec	KLM
05 Dec - 21 Dec	KLM
03 Dec - 14 Dec	KLM
08 Dec - 14 Dec	KLM
01 Dec - 14 Dec	KLM
26 Dec - 13 Jan	KLM
03 Dec - 16 Dec	KLM
07 Dec - 16 Dec	KLM
06 Dec - 16 Dec	KLM
27 Dec - 13 Jan	KLM
27 Dec - 16 Jan	KLM
30 Dec - 13 Jan	KLM
17 Dec - 15 Jan	KLM
28 Dec - 13 Jan	KLM
11 Dec - 18 Jan	Lufthansa
27 Dec - 11 Jan	KLM
12 Dec - 23 Jan	KLM
24 Dec - 16 Jan	KLM

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 768€

Return flights