How far is Rockford, IL, from Alamosa, CO?
The distance between Alamosa (San Luis Valley Regional Airport) and Rockford (Chicago Rockford International Airport) is 949 miles / 1527 kilometers / 824 nautical miles.
The driving distance from Alamosa (ALS) to Rockford (RFD) is 1183 miles / 1904 kilometers, and travel time by car is about 21 hours 8 minutes.
San Luis Valley Regional Airport – Chicago Rockford International Airport
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Distance from Alamosa to Rockford
There are several ways to calculate the distance from Alamosa to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 948.775 miles
- 1526.906 kilometers
- 824.463 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- 946.866 miles
- 1523.833 kilometers
- 822.804 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 Alamosa to Rockford?
The estimated flight time from San Luis Valley Regional Airport to Chicago Rockford International Airport is 2 hours and 17 minutes.
What is the time difference between Alamosa and Rockford?
The time difference between Alamosa and Rockford is 1 hour. Rockford is 1 hour ahead of Alamosa.
Flight carbon footprint between San Luis Valley Regional Airport (ALS) and Chicago Rockford International Airport (RFD)
On average, flying from Alamosa to Rockford generates about 147 kg of CO2 per passenger, and 147 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 Alamosa to Rockford
See the map of the shortest flight path between San Luis Valley Regional Airport (ALS) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | San Luis Valley Regional Airport |
|---|---|
| City: | Alamosa, CO |
| Country: | United States  |
| IATA Code: | ALS |
| ICAO Code: | KALS |
| Coordinates: | 37°26′5″N, 105°52′1″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 |