Cheapest return flights from Chicago to Seoul in March from 647€

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

Return flights

12 Mar - 22 Mar Cathay Pacific
10 Mar - 25 Mar Cathay Pacific
10 Mar - 18 Mar Cathay Pacific
06 Mar - 16 Mar Cathay Pacific
14 Mar - 21 Mar Cathay Pacific
20 Mar - 05 Apr Turkish Airlines
13 Mar - 29 Mar Turkish Airlines
21 Mar - 08 Apr Spirit Airlines
14 Mar - 12 Apr Spirit Airlines
25 Mar - 15 Apr Spirit Airlines
27 Mar - 18 Apr Frontier Airlines
25 Mar - 05 Apr Frontier Airlines
22 Mar - 12 Apr Etihad Airways
14 Mar - 22 Mar Alaska Airlines
06 Mar - 19 Mar Air Canada
10 Mar - 25 Mar Delta direct
10 Mar - 18 Mar Delta direct
25 Mar - 15 Apr Delta direct
25 Mar - 13 Apr Delta direct
25 Mar - 05 Apr Korean Air direct

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

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