AirHint found the following cheapest return flights from Shenzhen (SZX) to Cheju (CJU) in December 2025 (see full year).

Return flights

28 Dec - 31 Dec	China Eastern
24 Dec - 31 Dec	China Eastern
26 Dec - 31 Dec	Shenzhen Airlines
20 Dec - 26 Dec	Juneyao Airlines
01 Dec - 06 Dec	Asiana Airlines
02 Dec - 05 Dec	Asiana Airlines
01 Dec - 05 Dec	Asiana Airlines
09 Dec - 11 Dec	Asiana Airlines
10 Dec - 12 Dec	Asiana Airlines
26 Dec - 30 Dec	Shenzhen Airlines
31 Dec - 04 Jan	Asiana Airlines
31 Dec - 04 Jan	Shenzhen Airlines	direct

Also check the deals for one-way flights from Shenzhen to Cheju 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 Shenzhen to Cheju in December from $314

Return flights