Cheapest one-way flights from Chicago to Seoul in March from $459

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

One-Way flights

10 Mar Frontier Airlines
23 Mar Air India
03 Mar Spirit Airlines
09 Mar Frontier Airlines
25 Mar Frontier Airlines
08 Mar Cathay Pacific
04 Mar EVA Air
18 Mar Air India
17 Mar Frontier Airlines
22 Mar Cathay Pacific

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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