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

Return flights

11 Jun - 18 Jun	WestJet
13 Jun - 30 Jun	Cathay Pacific
09 Jun - 13 Jul	WestJet
10 Jun - 27 Jun	Cathay Pacific
10 Jun - 12 Jul	WestJet
09 Jun - 12 Jul	WestJet
08 Jun - 12 Jul	Finnair
27 Jun - 05 Jul	Alaska Airlines
10 Jun - 14 Jun	Turkish Airlines
09 Jun - 13 Jul	Delta	direct
11 Jun - 18 Jun	Delta	direct
10 Jun - 12 Jul	Delta	direct
08 Jun - 12 Jul	Delta	direct
09 Jun - 12 Jul	Delta	direct
10 Jun - 27 Jun	Delta	direct
13 Jun - 30 Jun	Delta	direct
27 Jun - 05 Jul	Delta	direct
10 Jun - 14 Jun	Korean Air	direct

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

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 June from 875€

Return flights