How far is Great Falls, MT, from Chicago, IL?
The distance between Chicago (Chicago Midway International Airport) and Great Falls (Great Falls International Airport) is 1223 miles / 1969 kilometers / 1063 nautical miles.
The driving distance from Chicago (MDW) to Great Falls (GTF) is 1391 miles / 2239 kilometers, and travel time by car is about 25 hours 33 minutes.
Chicago Midway International Airport – Great Falls International Airport
Search flights
Distance from Chicago to Great Falls
There are several ways to calculate the distance from Chicago to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1223.443 miles
- 1968.941 kilometers
- 1063.143 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- 1220.489 miles
- 1964.186 kilometers
- 1060.576 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 Chicago to Great Falls?
The estimated flight time from Chicago Midway International Airport to Great Falls International Airport is 2 hours and 48 minutes.
What is the time difference between Chicago and Great Falls?
The time difference between Chicago and Great Falls is 1 hour. Great Falls is 1 hour behind Chicago.
Flight carbon footprint between Chicago Midway International Airport (MDW) and Great Falls International Airport (GTF)
On average, flying from Chicago to Great Falls generates about 162 kg of CO2 per passenger, and 162 kilograms equals 358 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Chicago to Great Falls
See the map of the shortest flight path between Chicago Midway International Airport (MDW) and Great Falls International Airport (GTF).
Airport information
| Origin | Chicago Midway International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States  |
| IATA Code: | MDW |
| ICAO Code: | KMDW |
| Coordinates: | 41°47′9″N, 87°45′8″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 |