Cheapest return flights from Chicago to Seoul in May from $898

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

Return flights

06 May - 12 May Alaska Airlines
05 May - 26 May Frontier Airlines
06 May - 31 May Frontier Airlines
05 May - 29 May Frontier Airlines
05 May - 09 Jun Frontier Airlines
05 May - 31 May Alaska Airlines
05 May - 01 Jun Frontier Airlines
05 May - 02 Jun Frontier Airlines
06 May - 01 Jun Frontier Airlines
09 May - 16 May Frontier Airlines
11 May - 28 May Spirit Airlines
12 May - 26 May Frontier Airlines
27 May - 05 Jun WestJet
11 May - 23 May Spirit Airlines
11 May - 08 Jun Spirit Airlines
15 May - 23 May WestJet
12 May - 02 Jun Frontier Airlines
27 May - 06 Jun WestJet
08 May - 30 Jun WestJet
16 May - 18 Jun Frontier Airlines

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

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