Cheapest return flights from Chicago to Seoul in April from $825

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

Return flights

13 Apr - 27 Apr Frontier Airlines
15 Apr - 29 Apr Frontier Airlines
16 Apr - 16 May Turkish Airlines
20 Apr - 16 May Turkish Airlines
13 Apr - 05 May Frontier Airlines
22 Apr - 16 May Frontier Airlines
22 Apr - 27 Apr Frontier Airlines
16 Apr - 19 Apr Frontier Airlines
07 Apr - 23 Apr Frontier Airlines
13 Apr - 29 Apr Cathay Pacific
20 Apr - 22 May Turkish Airlines
04 Apr - 19 Apr Frontier Airlines
06 Apr - 23 Apr American Airlines
10 Apr - 19 Apr WestJet
02 Apr - 23 Apr Frontier Airlines
21 Apr - 16 May Cathay Pacific
04 Apr - 30 May Frontier Airlines
30 Apr - 03 May EVA Air
13 Apr - 05 May Korean Air direct
22 Apr - 16 May Korean Air direct

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

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