How far is Grand Forks from Chicago?
There are several ways to calculate distances between Chicago and Grand Forks. Here are two common methods:Vincenty's formula (applied above)
- 612.863 miles
- 986.307 kilometers
- 532.563 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
- 612.089 miles
- 985.061 kilometers
- 531.891 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).
Estimated flight time from O'Hare International Airport (ORD) to Grand Forks International Airport (GFK) is 1 hour 39 minutes.
Time difference and current local times
There is no time difference between Chicago and Grand Forks.
Grand Forks, ND
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 114 kg (252 pounds).
Chicago to Grand Forks flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Grand Forks (GFK).