AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in October 2026 (see full year).
One-Way flights
| 10 Oct | Alaska Airlines | ||
| 02 Oct | Etihad Airways | ||
| 09 Oct | Air Canada | ||
| 11 Oct | Korean Air | direct | |
| 09 Oct | Korean Air | direct | |
| 10 Oct | Delta | direct | |
| 02 Oct | Korean Air | direct |
Also check the deals for return flights from Chicago to Seoul in October.
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