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

Return flights

07 Jul - 20 Jul	Alaska Airlines
06 Jul - 20 Jul	Alaska Airlines
09 Jul - 04 Aug	Alaska Airlines
07 Jul - 28 Jul	WestJet
07 Jul - 21 Jul	WestJet
20 Jul - 17 Aug	Cathay Pacific
20 Jul - 27 Jul	Finnair
13 Jul - 20 Jul	Finnair
08 Jul - 15 Jul	Alaska Airlines
08 Jul - 12 Jul	Alaska Airlines
01 Jul - 19 Jul	Cathay Pacific
06 Jul - 26 Jul	Cathay Pacific
20 Jul - 17 Aug	Delta	direct
09 Jul - 04 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 976€

Return flights