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

Return flights

10 Dec - 17 Dec	China Southern	direct
24 Dec - 29 Dec	Asiana Airlines	direct
11 Dec - 18 Dec	Asiana Airlines	direct
17 Dec - 26 Dec	Asiana Airlines	direct
02 Dec - 06 Dec	China Southern	direct
02 Dec - 09 Dec	China Southern	direct
13 Dec - 20 Dec	China Southern	direct
22 Dec - 25 Dec	China Southern	direct

Also check the deals for one-way flights from Dalian 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 Dalian to Seoul in December from $129

Return flights