Cheapest one-way flights from Chicago to Seoul in March from $422

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

One-Way flights

10 Mar Frontier Airlines
01 Mar Frontier Airlines
02 Mar Frontier Airlines
06 Mar Frontier Airlines
19 Mar Frontier Airlines
14 Mar Frontier Airlines
28 Mar Frontier Airlines
31 Mar Frontier Airlines
25 Mar Korean Air
24 Mar Delta

Also check the deals for return flights from Chicago to Seoul in March.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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