Cheapest return flights from Chicago to Seoul in April from 894€

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

Return flights

27 Apr - 11 May Frontier Airlines
13 Apr - 21 Apr Southwest Airlines
24 Apr - 08 May Southwest Airlines
22 Apr - 29 Apr Southwest Airlines
24 Apr - 07 May Southwest Airlines
05 Apr - 18 Apr Southwest Airlines
02 Apr - 06 Apr Frontier Airlines
08 Apr - 21 Apr Southwest Airlines
21 Apr - 29 Apr Delta
14 Apr - 21 Apr Delta
12 Apr - 21 Apr Delta
06 Apr - 02 May Delta
18 Apr - 25 Apr Delta
01 Apr - 06 Apr Korean Air

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

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