AirHint found the following cheapest return flights from Christchurch (CHC) to London (LHR) in December 2026 (see full year).

Return flights

07 Dec - 15 Jan	Cathay Pacific
01 Dec - 10 Dec	British Airways
13 Dec - 02 Jan	China Southern
16 Dec - 02 Jan	China Southern
07 Dec - 05 Jan	Air New Zealand
18 Dec - 22 Jan	China Southern
16 Dec - 15 Jan	China Southern
12 Dec - 03 Jan	Air New Zealand
12 Dec - 07 Jan	Air New Zealand
21 Dec - 18 Jan	Cathay Pacific
18 Dec - 13 Jan	Air New Zealand
10 Dec - 31 Dec	Cathay Pacific
09 Dec - 16 Dec	China Southern

Also check the deals for one-way flights from Christchurch 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 Christchurch to London in December from 1326€

Return flights