Cheapest return flights from Chicago to Seoul in October from 754€

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

Return flights

31 Oct - 16 Nov Frontier Airlines
22 Oct - 29 Oct Cathay Pacific
30 Oct - 04 Nov Cathay Pacific
20 Oct - 27 Oct Cathay Pacific
30 Oct - 06 Nov Frontier Airlines
27 Oct - 16 Nov Spirit Airlines
31 Oct - 04 Nov Cathay Pacific
27 Oct - 20 Nov Cathay Pacific
29 Oct - 06 Nov Cathay Pacific
26 Oct - 16 Nov Frontier Airlines
23 Oct - 01 Nov Frontier Airlines
28 Oct - 31 Oct Alaska Airlines
20 Oct - 24 Oct Cathay Pacific
18 Oct - 21 Oct Air Canada
17 Oct - 21 Oct Air Canada
30 Oct - 06 Nov Delta direct
28 Oct - 31 Oct Delta direct
22 Oct - 29 Oct Korean Air direct
20 Oct - 27 Oct Korean Air direct
17 Oct - 21 Oct Korean Air direct

Also check the deals for one-way flights from Chicago to Seoul in October.

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