How far is Rockford from Spokane?
There are several ways to calculate distances between Spokane and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 1435.861 miles
- 2310.794 kilometers
- 1247.729 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 1432.195 miles
- 2304.895 kilometers
- 1244.544 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).
Estimated flight time from Spokane International Airport (GEG) to Chicago Rockford International Airport (RFD) is 3 hours 13 minutes.
Time difference and current local times
The time difference between Spokane and Rockford is 2 hours. Rockford is 2 hours ahead of Spokane.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 168 kg (371 pounds).
Spokane to Rockford flight map.
Frequent Flyer Miles Calculator
Spokane (GEG) → Rockford (RFD).