# 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.

## 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.

CDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 92 kg (202 pounds).

## Frequent Flyer Miles Calculator

Sioux City (SUX) → Champaign (CMI).

Distance:
453
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
453

Round trip?