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

Return flights

04 Feb - 09 Feb	Cathay Pacific
26 Feb - 08 Mar	Cathay Pacific
02 Feb - 16 Feb	Cathay Pacific
01 Feb - 02 Mar	Frontier Airlines
08 Feb - 15 Feb	Cathay Pacific
27 Feb - 08 Mar	Cathay Pacific
05 Feb - 19 Feb	Cathay Pacific
07 Feb - 14 Mar	Cathay Pacific
26 Feb - 07 Mar	EVA Air
02 Feb - 16 Feb	Korean Air	direct
05 Feb - 19 Feb	Korean Air	direct
26 Feb - 07 Mar	Delta	direct
01 Feb - 02 Mar	Korean Air	direct
07 Feb - 14 Mar	Delta	direct
08 Feb - 15 Feb	Delta	direct
04 Feb - 09 Feb	Delta	direct

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

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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Cheapest return flights from Chicago to Seoul in February from $862

Return flights