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

Return flights

30 Dec - 10 Jan	Delta
15 Dec - 29 Dec	Delta
23 Dec - 29 Dec	Delta
11 Dec - 14 Dec	Alaska Airlines
21 Dec - 18 Jan	Delta
22 Dec - 17 Jan	Delta
21 Dec - 17 Jan	Delta
13 Dec - 27 Dec	Delta
18 Dec - 27 Dec	Delta

Also check the deals for one-way flights from Columbus 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 Columbus to Seoul in December from 1293€

Return flights