Distance between Sioux City, IA (SUX) and Champaign, IL (CMI)
Flight distance from Sioux City to Champaign (Sioux Gateway Airport – University of Illinois Willard Airport) is 453 miles / 728 kilometers / 393 nautical miles. Estimated flight time is 1 hour 21 minutes.
Driving distance from Sioux City (SUX) to Champaign (CMI) is 551 miles / 887 kilometers and travel time by car is about 9 hours 31 minutes.
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Sioux City - Champaign
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).
Airport information
| A | Sioux Gateway Airport |
|---|---|
| City: | Sioux City, IA |
| Country: | United States  |
| IATA Code: | SUX |
| ICAO Code: | KSUX |
| Coordinates: | 42°24′9″N, 96°23′3″W |
| B | University of Illinois Willard Airport |
|---|---|
| City: | Champaign, IL |
| Country: | United States |
| IATA Code: | CMI |
| ICAO Code: | KCMI |
| Coordinates: | 40°2′21″N, 88°16′41″W |
Time difference and current local times
There is no time difference between Sioux City and Champaign.
Time Difference
Sioux City, IA
Champaign, IL
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 92 kg (202 pounds).
Frequent Flyer Miles Calculator
Sioux City (SUX) → Champaign (CMI).
In total
Round trip?