AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in January 2026 (see full year).

One-Way flights

19 Jan	WestJet
06 Jan	Alaska Airlines
07 Jan	Turkish Airlines
08 Jan	Turkish Airlines
22 Jan	Turkish Airlines
16 Jan	WestJet
04 Jan	Air Canada
03 Jan	Air Canada
07 Jan	Delta	direct
08 Jan	Delta	direct

Also check the deals for return flights from Chicago to Seoul in January.

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 one-way flights from Chicago to Seoul in January from 448€

One-Way flights