Map of flight path and driving directions from Sioux City to Champaign.
Shortest flight path between Sioux Gateway Airport (SUX) and University of Illinois Willard Airport (CMI).
How far is Champaign from Sioux City?
There are several ways to calculate distances between Sioux City and Champaign. Here are two common methods:Vincenty's formula (applied above)
- 452.532 miles
- 728.280 kilometers
- 393.240 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
- 451.593 miles
- 726.769 kilometers
- 392.424 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
There is no time difference between Sioux City and Champaign.
Sioux City, IA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 92 kg (202 pounds).
Frequent Flyer Miles Calculator
Sioux City (SUX) → Champaign (CMI).