How far is Chicago, IL, from Ontario, CA?
The distance between Ontario (Ontario International Airport) and Chicago (Chicago Midway International Airport) is 1706 miles / 2745 kilometers / 1482 nautical miles.
The driving distance from Ontario (ONT) to Chicago (MDW) is 1975 miles / 3179 kilometers, and travel time by car is about 34 hours 37 minutes.
Ontario International Airport – Chicago Midway International Airport
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Distance from Ontario to Chicago
There are several ways to calculate the distance from Ontario to Chicago. Here are two standard methods:
Vincenty's formula (applied above)- 1705.645 miles
- 2744.969 kilometers
- 1482.165 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 1702.286 miles
- 2739.563 kilometers
- 1479.246 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Ontario to Chicago?
The estimated flight time from Ontario International Airport to Chicago Midway International Airport is 3 hours and 43 minutes.
What is the time difference between Ontario and Chicago?
The time difference between Ontario and Chicago is 2 hours. Chicago is 2 hours ahead of Ontario.
Flight carbon footprint between Ontario International Airport (ONT) and Chicago Midway International Airport (MDW)
On average, flying from Ontario to Chicago generates about 193 kg of CO2 per passenger, and 193 kilograms equals 426 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Ontario to Chicago
See the map of the shortest flight path between Ontario International Airport (ONT) and Chicago Midway International Airport (MDW).
Airport information
| Origin | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States  |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |
| Destination | Chicago Midway International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States |
| IATA Code: | MDW |
| ICAO Code: | KMDW |
| Coordinates: | 41°47′9″N, 87°45′8″W |
Airlines flying from Ontario (ONT) to Chicago (MDW)
| Southwest Airlines |