AirHint found the following cheapest return flights from Chicago (ORD) to Seoul (ICN) in April 2026 (see full year).
Return flights
| 01 Apr - 22 Apr | Turkish Airlines | ||
| 09 Apr - 12 Apr | Turkish Airlines | ||
| 29 Apr - 06 May | Turkish Airlines | ||
| 01 Apr - 22 Apr | Korean Air | direct | |
| 29 Apr - 06 May | Delta | direct | |
| 09 Apr - 12 Apr | Delta | direct |
Also check the deals for one-way flights from Chicago to Seoul in April.
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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