How far is Great Falls, MT, from Champaign, IL?
The distance between Champaign (University of Illinois Willard Airport) and Great Falls (Great Falls International Airport) is 1258 miles / 2025 kilometers / 1093 nautical miles.
The driving distance from Champaign (CMI) to Great Falls (GTF) is 1498 miles / 2410 kilometers, and travel time by car is about 27 hours 23 minutes.
University of Illinois Willard Airport – Great Falls International Airport
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Distance from Champaign to Great Falls
There are several ways to calculate the distance from Champaign to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1258.373 miles
- 2025.155 kilometers
- 1093.496 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- 1255.694 miles
- 2020.843 kilometers
- 1091.168 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 Great Falls?
The estimated flight time from University of Illinois Willard Airport to Great Falls International Airport is 2 hours and 52 minutes.
What is the time difference between Champaign and Great Falls?
Flight carbon footprint between University of Illinois Willard Airport (CMI) and Great Falls International Airport (GTF)
On average, flying from Champaign to Great Falls generates about 164 kg of CO2 per passenger, and 164 kilograms equals 362 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 Great Falls
See the map of the shortest flight path between University of Illinois Willard Airport (CMI) and Great Falls International Airport (GTF).
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 | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |