Cheapest return ORD–ICN flights, August

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

Return flights

17 Aug - 07 Sep Spirit Airlines
04 Aug - 28 Aug Frontier Airlines
20 Aug - 01 Sep Alaska Airlines
04 Aug - 02 Sep Cathay Pacific
10 Aug - 24 Aug Cathay Pacific
13 Aug - 21 Aug Cathay Pacific
14 Aug - 23 Aug Frontier Airlines
02 Aug - 16 Aug Spirit Airlines
31 Aug - 25 Sep United
07 Aug - 15 Aug Spirit Airlines
11 Aug - 23 Aug Air Canada
18 Aug - 25 Aug Air Canada
18 Aug - 25 Aug Delta direct
17 Aug - 07 Sep Delta direct
20 Aug - 01 Sep Delta direct
04 Aug - 02 Sep Delta direct
31 Aug - 25 Sep Delta direct
10 Aug - 24 Aug Korean Air direct

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

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