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

Return flights

31 Dec - 14 Jan	KLM
31 Dec - 28 Jan	KLM
31 Dec - 19 Jan	SWISS
30 Dec - 19 Jan	SWISS
29 Dec - 26 Jan	SWISS
29 Dec - 25 Jan	SWISS
28 Dec - 26 Jan	KLM
31 Dec - 27 Jan	KLM
30 Dec - 26 Jan	KLM
27 Dec - 31 Dec	KLM
30 Dec - 27 Jan	KLM
27 Dec - 30 Dec	British Airways
29 Dec - 31 Dec	ITA Airways
27 Dec - 29 Dec	British Airways
28 Dec - 31 Dec	KLM

Also check the deals for one-way flights from London to Auckland 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 Auckland in December from 1403€

Return flights