How far is Kalispell, MT, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Kalispell (Glacier Park International Airport) is 1291 miles / 2077 kilometers / 1122 nautical miles.
The driving distance from Rockford (RFD) to Kalispell (FCA) is 1527 miles / 2457 kilometers, and travel time by car is about 27 hours 43 minutes.
Chicago Rockford International Airport – Glacier Park International Airport
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Distance from Rockford to Kalispell
There are several ways to calculate the distance from Rockford to Kalispell. 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 Rockford to Kalispell?
The estimated flight time from Chicago Rockford International Airport to Glacier Park International Airport is 2 hours and 56 minutes.
What is the time difference between Rockford and Kalispell?
The time difference between Rockford and Kalispell is 1 hour. Kalispell is 1 hour behind Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Glacier Park International Airport (FCA)
On average, flying from Rockford to Kalispell 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 Rockford to Kalispell
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Glacier Park International Airport (FCA).
Airport information
| Origin | 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 |
| Destination | 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 |