Flights from Chicago to Ontario

Did you mean Flights from Ontario to Chicago?

Chicago

United States

ORD

Chicago O'Hare International Airport

Ontario

United States

ONT

Ontario International Airport

Distance: 1,697 miles

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-17 through 2026-11-15.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Chicago to Ontario route overview

Chicago O'Hare International Airport (ORD) serves Chicago; Ontario International Airport (ONT) serves Ontario.

The airports are 1,697 miles apart by great-circle distance.

Frequently asked questions

Which airports serve the Chicago to Ontario route?

Chicago O'Hare International Airport (ORD) is the origin airport and Ontario International Airport (ONT) is the destination airport.

How far is Ontario from Chicago?

ORD and ONT are approximately 1,697 miles apart by great-circle distance.

More routes from Chicago

Published schedules are temporarily unavailable for ORD. Airport facts and route navigation remain available.