How far is Grand Forks from Sioux City?
There are several ways to calculate distances between Sioux City and Grand Forks. Here are two common methods:Vincenty's formula (applied above)
- 384.975 miles
- 619.557 kilometers
- 334.534 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
- 385.169 miles
- 619.870 kilometers
- 334.703 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 Sioux Gateway Airport (SUX) to Grand Forks International Airport (GFK) is 1 hour 13 minutes.
Time difference and current local times
There is no time difference between Sioux City and Grand Forks.
Sioux City, IA
Grand Forks, ND
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 81 kg (179 pounds).
Sioux City to Grand Forks flight map.
Frequent Flyer Miles Calculator
Sioux City (SUX) → Grand Forks (GFK).