Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Kalgoorlie as you normally would.
Kalgoorlie (KGI) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Kalgoorlie. You should not have trouble finding flights to Kalgoorlie from Chicago O'Hare Intl; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Kalgoorlie airport from Chicago O'Hare Intl. It is only a 2.7 mi journey from Kalgoorlie (KGI) to Kalgoorlie’s city center.