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

Return flights

13 Dec - 15 Jan	China Southern
14 Dec - 11 Jan	China Southern
14 Dec - 12 Jan	China Southern
12 Dec - 31 Jan	China Southern
21 Dec - 31 Jan	China Southern
22 Dec - 12 Jan	China Southern
21 Dec - 07 Jan	China Southern
24 Dec - 10 Jan	China Southern
23 Dec - 26 Jan	China Southern
02 Dec - 09 Dec	China Eastern
09 Dec - 08 Jan	Jetstar
02 Dec - 10 Dec	China Eastern
02 Dec - 06 Dec	Jetstar
04 Dec - 09 Dec	Jetstar
18 Dec - 25 Dec	China Southern
04 Dec - 28 Dec	Air China
04 Dec - 24 Dec	Jetstar
12 Dec - 30 Dec	Jetstar
12 Dec - 24 Dec	Jetstar
05 Dec - 09 Dec	Air China

Also check the deals for one-way flights from Seoul 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 Seoul to Auckland in December from $586

Return flights