Cheapest return flights from Chicago to Seoul in August from 679€

AirHint found the following cheapest return flights from Chicago (ORD) to Seoul (ICN) in August 2025 (see full year).

Return flights

25 Aug - 01 Sep Cathay Pacific
21 Aug - 31 Aug Cathay Pacific
26 Aug - 09 Sep Cathay Pacific
17 Aug - 28 Aug Cathay Pacific
17 Aug - 31 Aug Cathay Pacific
22 Aug - 31 Aug Cathay Pacific
31 Aug - 30 Sep Hawaiian Airlines
16 Aug - 26 Aug Frontier Airlines
16 Aug - 23 Aug Frontier Airlines
04 Aug - 19 Aug Turkish Airlines
10 Aug - 23 Aug Turkish Airlines
17 Aug - 23 Aug Turkish Airlines
11 Aug - 22 Aug Turkish Airlines
26 Aug - 09 Sep Delta direct
25 Aug - 01 Sep Delta direct
22 Aug - 03 Sep Delta direct

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

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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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