Air Miles Calculator

Distance between Chicago, IL (MDW) and Ontario, CA (ONT)

Distance from Chicago to Ontario (Midway International Airport – Ontario International Airport) is 1706 miles / 2745 kilometers / 1482 nautical miles.

How far is Ontario from Chicago?

There are several ways to calculate distances between Chicago and Ontario. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from Midway International Airport (MDW) to Ontario International Airport (ONT) is 3 hours 43 minutes.

Time difference and current local times

The time difference between Chicago and Ontario is 2 hours. Ontario is 2 hours behind Chicago.

Time Difference

Chicago
Ontario

Chicago, IL

 CST

Ontario, CA

 PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 201 kg (444 pounds).

Airport information


A Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

B Ontario International Airport
City: Ontario, CA
Country: United States Flag of United States
IATA Code: ONT
ICAO Code: KONT
Coordinates: 34°3′21″N, 117°36′3″W

Map

Chicago to Ontario flight map.

Frequent Flyer Miles Calculator

Chicago (MDW) → Ontario (ONT).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1706
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1706

Round trip?