How far is Rapid City, SD, from Champaign, IL?
The distance between Champaign (University of Illinois Willard Airport) and Rapid City (Rapid City Regional Airport) is 808 miles / 1300 kilometers / 702 nautical miles.
The driving distance from Champaign (CMI) to Rapid City (RAP) is 984 miles / 1584 kilometers, and travel time by car is about 17 hours 10 minutes.
University of Illinois Willard Airport – Rapid City Regional Airport
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Distance from Champaign to Rapid City
There are several ways to calculate the distance from Champaign to Rapid City. Here are two standard methods:
Vincenty's formula (applied above)- 807.650 miles
- 1299.786 kilometers
- 701.829 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 805.888 miles
- 1296.950 kilometers
- 700.297 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).
How long does it take to fly from Champaign to Rapid City?
The estimated flight time from University of Illinois Willard Airport to Rapid City Regional Airport is 2 hours and 1 minutes.
What is the time difference between Champaign and Rapid City?
Flight carbon footprint between University of Illinois Willard Airport (CMI) and Rapid City Regional Airport (RAP)
On average, flying from Champaign to Rapid City generates about 136 kg of CO2 per passenger, and 136 kilograms equals 299 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Champaign to Rapid City
See the map of the shortest flight path between University of Illinois Willard Airport (CMI) and Rapid City Regional Airport (RAP).
Airport information
| Origin | 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 |
| Destination | Rapid City Regional Airport |
|---|---|
| City: | Rapid City, SD |
| Country: | United States |
| IATA Code: | RAP |
| ICAO Code: | KRAP |
| Coordinates: | 44°2′43″N, 103°3′25″W |