Cheapest return flights from Chicago to Seoul in March from $1092

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

Return flights

08 Mar - 12 Mar Frontier Airlines
09 Mar - 19 Mar Frontier Airlines
07 Mar - 21 Mar Frontier Airlines
21 Mar - 30 Mar Frontier Airlines
20 Mar - 30 Mar Frontier Airlines
16 Mar - 24 Mar Frontier Airlines
10 Mar - 17 Mar Frontier Airlines
03 Mar - 10 Mar Delta
11 Mar - 23 Mar Delta
28 Mar - 15 Apr Delta
26 Mar - 04 Apr Delta
21 Mar - 15 Apr Delta
13 Mar - 22 Mar Delta
14 Mar - 12 Apr Korean Air

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

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