Air Miles Calculator

Distance between Spokane, WA (GEG) and Rockford, IL (RFD)

Distance from Spokane to Rockford (Spokane International Airport – Chicago Rockford International Airport) is 1436 miles / 2311 kilometers / 1248 nautical miles.

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).

Flight duration

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.

Time Difference

Spokane
Rockford

Spokane, WA

 PST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 168 kg (371 pounds).

Airport information


A Spokane International Airport
City: Spokane, WA
Country: United States Flag of United States
IATA Code: GEG
ICAO Code: KGEG
Coordinates: 47°37′11″N, 117°32′2″W

B Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

Map

Spokane to Rockford flight map.

Frequent Flyer Miles Calculator

Spokane (GEG) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1436
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1436

Round trip?