AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in May 2026 (see full year).
One-Way flights
| 05 May | Turkish Airlines | ||
| 07 May | WestJet | ||
| 23 May | WestJet | ||
| 25 May | Cathay Pacific | ||
| 07 May | Korean Air | direct | |
| 05 May | Delta | direct | |
| 25 May | Delta | direct | |
| 23 May | Delta | direct |
Also check the deals for return flights from Chicago to Seoul in May.
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