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

Return flights

29 Jul - 03 Aug	Cathay Pacific
07 Jul - 20 Jul	Alaska Airlines
16 Jul - 31 Jul	Cathay Pacific
12 Jul - 31 Jul	Cathay Pacific
09 Jul - 16 Jul	Delta	direct
13 Jul - 20 Jul	Delta	direct
15 Jul - 22 Jul	Delta	direct
16 Jul - 31 Jul	Korean Air	direct
10 Jul - 17 Jul	Delta	direct
12 Jul - 19 Jul	Delta	direct
12 Jul - 31 Jul	Korean Air	direct
29 Jul - 03 Aug	Delta	direct

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

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 July from 1117€

Return flights