Cheapest return flights from Chicago to Seoul in April from 721€

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

Return flights

14 Apr - 25 Apr Spirit Airlines
22 Apr - 16 May Frontier Airlines
16 Apr - 16 May Spirit Airlines
23 Apr - 09 May Spirit Airlines
13 Apr - 05 May Frontier Airlines
22 Apr - 06 May Frontier Airlines
03 Apr - 17 May WestJet
15 Apr - 29 Apr Spirit Airlines
10 Apr - 19 Apr WestJet
25 Apr - 23 May Frontier Airlines
07 Apr - 22 Apr Spirit Airlines
07 Apr - 19 Apr Spirit Airlines
29 Apr - 02 May Alaska Airlines
30 Apr - 03 May Alaska Airlines
01 Apr - 13 Apr Frontier Airlines
04 Apr - 09 Apr Alaska Airlines
01 Apr - 06 Apr Air Canada
26 Apr - 14 May Air Canada
01 Apr - 29 Apr Air Canada
20 Apr - 30 Apr Air Canada

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

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