Distance between Chicago, IL (MDW) and Ontario, CA (ONT)
Distance from Chicago (Midway International Airport) to Ontario (Ontario International Airport) is 1706 miles / 2745 kilometers / 1482 nautical miles.
Calculations with different 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).
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
CDT
Ontario, CA
PDT
Airport information
| A | Midway International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | 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 |
| 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?