Cheapest return flights from Chicago to Seoul in October from 675€

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

Return flights

14 Oct - 21 Oct Cathay Pacific
20 Oct - 20 Nov Cathay Pacific
16 Oct - 24 Oct WestJet
12 Oct - 19 Oct Cathay Pacific
03 Oct - 11 Oct WestJet
21 Oct - 27 Oct Frontier Airlines
20 Oct - 01 Nov WestJet
20 Oct - 30 Oct WestJet
02 Oct - 18 Oct Cathay Pacific
23 Oct - 07 Nov Cathay Pacific
01 Oct - 20 Oct Turkish Airlines
04 Oct - 11 Oct Turkish Airlines
25 Oct - 02 Nov Air Canada
07 Oct - 14 Oct United
20 Oct - 20 Nov Delta direct
23 Oct - 07 Nov Delta direct

Also check the deals for one-way 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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