Cheapest return flights from Chicago to Seoul in May from 905€

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

Return flights

15 May - 31 May Frontier Airlines
15 May - 23 May Frontier Airlines
18 May - 08 Jun Southwest Airlines
01 May - 12 May Southwest Airlines
25 May - 22 Jun Porter Airlines (Canada) Ltd
12 May - 17 May Frontier Airlines
22 May - 11 Jun Southwest Airlines
13 May - 19 Jun Southwest Airlines
11 May - 20 May Delta
09 May - 24 May Delta
16 May - 25 May Delta

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

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