How far is Rockford, IL, from Kalispell, MT?
The distance between Kalispell (Glacier Park International Airport) and Rockford (Chicago Rockford International Airport) is 1291 miles / 2077 kilometers / 1122 nautical miles.
The driving distance from Kalispell (FCA) to Rockford (RFD) is 1526 miles / 2456 kilometers, and travel time by car is about 27 hours 31 minutes.
Glacier Park International Airport – Chicago Rockford International Airport
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Distance from Kalispell to Rockford
There are several ways to calculate the distance from Kalispell to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 1290.815 miles
- 2077.365 kilometers
- 1121.688 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- 1287.658 miles
- 2072.285 kilometers
- 1118.945 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 Kalispell to Rockford?
The estimated flight time from Glacier Park International Airport to Chicago Rockford International Airport is 2 hours and 56 minutes.
What is the time difference between Kalispell and Rockford?
The time difference between Kalispell and Rockford is 1 hour. Rockford is 1 hour ahead of Kalispell.
Flight carbon footprint between Glacier Park International Airport (FCA) and Chicago Rockford International Airport (RFD)
On average, flying from Kalispell to Rockford generates about 166 kg of CO2 per passenger, and 166 kilograms equals 367 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Kalispell to Rockford
See the map of the shortest flight path between Glacier Park International Airport (FCA) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Glacier Park International Airport |
|---|---|
| City: | Kalispell, MT |
| Country: | United States  |
| IATA Code: | FCA |
| ICAO Code: | KGPI |
| Coordinates: | 48°18′37″N, 114°15′21″W |
| Destination | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |