Cheapest one-way flights from Chicago to Seoul in October from 417€

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

One-Way flights

27 Oct Spirit Airlines
29 Oct Frontier Airlines
31 Oct Frontier Airlines
28 Oct Frontier Airlines
26 Oct Frontier Airlines
23 Oct Spirit Airlines
19 Oct Frontier Airlines
18 Oct WestJet
16 Oct Hawaiian Airlines
27 Oct Korean Air direct

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

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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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