How far is Aspen, CO, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Aspen (Aspen–Pitkin County Airport) is 954 miles / 1535 kilometers / 829 nautical miles.
The driving distance from Rockford (RFD) to Aspen (ASE) is 1137 miles / 1830 kilometers, and travel time by car is about 20 hours 41 minutes.
Chicago Rockford International Airport – Aspen–Pitkin County Airport
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Distance from Rockford to Aspen
There are several ways to calculate the distance from Rockford to Aspen. Here are two standard methods:
Vincenty's formula (applied above)- 953.544 miles
- 1534.581 kilometers
- 828.607 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- 951.293 miles
- 1530.957 kilometers
- 826.651 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 Aspen?
The estimated flight time from Chicago Rockford International Airport to Aspen–Pitkin County Airport is 2 hours and 18 minutes.
What is the time difference between Rockford and Aspen?
The time difference between Rockford and Aspen is 1 hour. Aspen is 1 hour behind Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Aspen–Pitkin County Airport (ASE)
On average, flying from Rockford to Aspen generates about 148 kg of CO2 per passenger, and 148 kilograms equals 325 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 Aspen
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Aspen–Pitkin County Airport (ASE).
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 | Aspen–Pitkin County Airport |
|---|---|
| City: | Aspen, CO |
| Country: | United States |
| IATA Code: | ASE |
| ICAO Code: | KASE |
| Coordinates: | 39°13′23″N, 106°52′8″W |