Map of flight path and driving directions from Sioux City to Great Falls.
Shortest flight path between Sioux Gateway Airport (SUX) and Great Falls International Airport (GTF).
How far is Great Falls from Sioux City?
There are several ways to calculate distances between Sioux City and Great Falls. Here are two common methods:Vincenty's formula (applied above)
- 812.566 miles
- 1307.698 kilometers
- 706.101 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
- 810.813 miles
- 1304.877 kilometers
- 704.577 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).
Time difference and current local times
The time difference between Sioux City and Great Falls is 1 hour. Great Falls is 1 hour behind Sioux City.
Sioux City, IA
Great Falls, MT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 136 kg (300 pounds).
Frequent Flyer Miles Calculator
Sioux City (SUX) → Great Falls (GTF).