Cheapest return flights from Chicago to Seoul in May from 690€

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

Return flights

07 May - 21 May Cathay Pacific
28 May - 15 Jun WestJet
22 May - 02 Jun WestJet
14 May - 29 Jun Turkish Airlines
07 May - 21 May Delta direct
14 May - 29 Jun Delta direct
28 May - 15 Jun Delta direct
22 May - 02 Jun Delta direct

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

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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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