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

Return flights

23 Dec - 05 Jan	China Eastern
09 Dec - 15 Dec	Asiana Airlines
25 Dec - 10 Jan	Cathay Pacific
03 Dec - 07 Dec	Asiana Airlines
04 Dec - 07 Dec	Asiana Airlines
08 Dec - 04 Jan	Asiana Airlines
05 Dec - 08 Dec	Korean Air
19 Dec - 26 Dec	China Eastern
23 Dec - 07 Jan	Cathay Pacific
18 Dec - 23 Jan	Cathay Pacific
06 Dec - 13 Dec	AirAsia X
21 Dec - 04 Jan	Cathay Pacific
27 Dec - 31 Dec	Cathay Pacific

Also check the deals for one-way flights from Sapporo to London 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 Sapporo to London in December from 846€

Return flights