Cheapest one-way flights from Chicago to Seoul in October from $531

Best time to book flights for Chicago (ORD) to Seoul (ICN) flights at AirHint

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

One-Way flights

14 Oct Turkish Airlines
13 Oct EVA Air
07 Oct Turkish Airlines
05 Oct Alaska Airlines
14 Oct Delta direct
05 Oct Delta direct
11 Oct Delta
07 Oct Korean Air direct
13 Oct Delta direct
11 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul