Cheapest return flights from Chicago to Seoul in January from 728€

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

Return flights

16 Jan - 31 Jan Frontier Airlines
28 Jan - 11 Feb Cathay Pacific
22 Jan - 01 Feb Frontier Airlines
17 Jan - 31 Jan Spirit Airlines
19 Jan - 28 Jan Cathay Pacific
12 Jan - 09 Feb Frontier Airlines
28 Jan - 04 Feb Spirit Airlines
19 Jan - 29 Jan WestJet
10 Jan - 24 Jan Frontier Airlines
07 Jan - 22 Jan Spirit Airlines
05 Jan - 23 Feb Frontier Airlines
12 Jan - 26 Jan Cathay Pacific
07 Jan - 21 Jan Frontier Airlines
20 Jan - 26 Jan Hawaiian Airlines
01 Jan - 29 Jan Frontier Airlines
28 Jan - 11 Feb Delta direct
12 Jan - 09 Feb Delta direct
28 Jan - 04 Feb Delta direct
22 Jan - 01 Feb Delta direct

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

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