Distance from Chicago to Ontario by Car and Plane

1. USA City Map
2. Distance Between US Cities Calculator
3. Distance Between Chicago and Ontario

The flight distance from Chicago (IL) to Ontario (CA) is 1709 miles or 2750 kilometers or 1484 nautical miles.
Driving distance from Chicago to Ontario is 1982 miles (3191 kilometers).
Difference between fly and travel by a car is 273 miles or 441 km.

Chicago to Ontario Flight Route Map

Map Showing the Distance Between Chicago, IL and Ontario, CA
This map shows the distance from Chicago, IL, Usa to Ontario, CA, Usa. You can also see the distance in miles and km below the map. Flight route map from Chicago, Illinois to Ontario, California is displayed below.

Driving distance from Chicago, IL to Ontario, CA

The driving distance from Chicago, Illinois to Ontario, California is 1982 miles or 3191 km.
The total driving distance from Chicago, IL to Ontario, CA is 1982 miles or 3191 kilometers. Your trip begins in Chicago, Illinois. It ends in Ontario, California.
The driving distance from Chicago, Illinois to Ontario, California is approximately 1982 miles (3191 kilometers), depending on the specific route you take. Without considering any traffic or other delays, driving this distance typically takes around 34 to 35 hours under normal conditions.

Driving time from Chicago, IL to Ontario, CA

How long is the drive from Chicago, IL to Ontario, CA?
The total driving time is 34 hours, 39 minutes.
How long does a car ride from Chicago to Ontario take?
Chicago and Ontario are 34 hours 39 mins far apart, if you drive non-stop.

---

Attention! According to the recommendations of experts, you should stop and take a break every 2 hours on average, take a fresh air and walk a little to protect your alertness and health during long trips by car. In addition, you can drink some coffee to prevent you from sleeping. People who drive constantly without taking a break lose their focus and can eventually cause accidents. Also, please drive carefully and follow the speed rules.

Time Difference between Chicago and Ontario

Time difference between Chicago (IL) and Ontario (CA) is 2 Hours.
Ontario time is 2 Hours behind Chicago.

Current local time in Chicago	Current local time in Ontario
2026-03-31, 22:22:09 CDT	2026-03-31, 20:22:09 PDT

How Far is it Between Chicago Illinois, USA and Ontario California, USA?

You can compare air and road distance between Chicago, IL and Ontario, CA in this summary table of distances in miles, kilometers and nautical miles.

Distance type	Miles	Kilometers	Nautical miles
Driving distance	1982 mi	3191 km	1721.17 nmi
Straight line distance	1709 mi	2750 km	1484 nmi
Difference	273 mi	441 km	237 nmi

---

---