Cheapest return ORD–ICN flights, October

AirHint found the following cheapest return flights from Chicago (ORD) to Seoul (ICN) in October 2026 (see full year).

Return flights

01 Oct - 12 Oct Cathay Pacific
09 Oct - 23 Oct Cathay Pacific
01 Oct - 06 Oct Cathay Pacific
26 Oct - 05 Nov United
27 Oct - 05 Nov United
19 Oct - 26 Oct United
27 Oct - 03 Nov United
01 Oct - 29 Oct Spirit Airlines
03 Oct - 10 Oct Alaska Airlines
22 Oct - 05 Nov United
12 Oct - 13 Nov Spirit Airlines
08 Oct - 11 Oct United
08 Oct - 25 Oct Air Canada
26 Oct - 05 Nov Delta direct
27 Oct - 05 Nov Delta direct
19 Oct - 26 Oct Delta direct
22 Oct - 05 Nov Delta direct
27 Oct - 03 Nov Delta direct
08 Oct - 25 Oct Delta direct
12 Oct - 13 Nov Delta direct

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

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