Cheapest return flights from Chicago to Cheju in May from $1204

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

Powered by

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.