How far is Chicago, IL, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Chicago (Chicago O'Hare International Airport) is 1210 miles / 1948 kilometers / 1052 nautical miles.
The driving distance from Great Falls (GTF) to Chicago (ORD) is 1371 miles / 2206 kilometers, and travel time by car is about 24 hours 52 minutes.
Great Falls International Airport – Chicago O'Hare International Airport
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Distance from Great Falls to Chicago
There are several ways to calculate the distance from Great Falls to Chicago. Here are two standard methods:
Vincenty's formula (applied above)- 1210.473 miles
- 1948.067 kilometers
- 1051.872 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- 1207.522 miles
- 1943.318 kilometers
- 1049.308 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 Great Falls to Chicago?
The estimated flight time from Great Falls International Airport to Chicago O'Hare International Airport is 2 hours and 47 minutes.
What is the time difference between Great Falls and Chicago?
Flight carbon footprint between Great Falls International Airport (GTF) and Chicago O'Hare International Airport (ORD)
On average, flying from Great Falls to Chicago generates about 162 kg of CO2 per passenger, and 162 kilograms equals 357 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Chicago
See the map of the shortest flight path between Great Falls International Airport (GTF) and Chicago O'Hare International Airport (ORD).
Airport information
| Origin | 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 |
| Destination | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |