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

Return flights

18 Dec - 31 Jan	China Southern
18 Dec - 26 Jan	China Southern
18 Dec - 28 Jan	China Southern
18 Dec - 29 Jan	China Southern
22 Dec - 09 Jan	China Southern
15 Dec - 09 Jan	China Southern
17 Dec - 09 Jan	China Southern
23 Dec - 07 Jan	China Southern
06 Dec - 26 Jan	China Southern
15 Dec - 18 Jan	China Southern
12 Dec - 20 Dec	Air China
18 Dec - 21 Dec	Air China
06 Dec - 10 Dec	Jetstar
06 Dec - 11 Dec	Jetstar
01 Dec - 26 Dec	China Airlines
02 Dec - 10 Dec	Jetstar
01 Dec - 02 Dec	Air China
04 Dec - 15 Dec	Jetstar
04 Dec - 18 Dec	Jetstar
04 Dec - 16 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 505€

Return flights