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

Return flights

17 Dec - 24 Dec	China Southern
08 Dec - 27 Dec	Jetstar
04 Dec - 20 Jan	Air New Zealand
08 Dec - 08 Jan	Jetstar
31 Dec - 31 Jan	Jetstar
08 Dec - 10 Jan	Jetstar
08 Dec - 11 Jan	Air New Zealand
06 Dec - 09 Jan	Air New Zealand
07 Dec - 09 Jan	Air New Zealand
08 Dec - 09 Jan	Air New Zealand
07 Dec - 10 Jan	Jetstar
09 Dec - 10 Jan	Jetstar
16 Dec - 24 Dec	Air New Zealand
18 Dec - 24 Dec	Air New Zealand
19 Dec - 24 Dec	China Southern

Also check the deals for one-way flights from Christchurch to Seoul 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 Seoul in December from 986€

Return flights