Cheapest one-way flights from Chicago to Seoul in October from 430€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in October 2025 (see full year).

One-Way flights

15 Oct Spirit Airlines
05 Oct Air Canada
17 Oct Air Canada
30 Oct Air Canada
09 Oct Cathay Pacific
30 Oct Delta direct
20 Oct Delta direct
22 Oct Korean Air direct
05 Oct Korean Air direct
13 Oct Korean Air direct

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

Skyscanner

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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