Air Miles Calculator

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

Flight distance from Spokane to Rockford (Spokane International Airport – Chicago Rockford International Airport) is 1436 miles / 2311 kilometers / 1248 nautical miles. Estimated flight time is 3 hours 13 minutes.

Driving distance from Spokane (GEG) to Rockford (RFD) is 1759 miles / 2831 kilometers and travel time by car is about 28 hours 15 minutes.

Map of flight path and driving directions from Spokane to Rockford.

Shortest flight path between Spokane International Airport (GEG) and Chicago Rockford International Airport (RFD).

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).

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

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, WA

 PST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 175 kg (387 pounds).

Frequent Flyer Miles Calculator

Spokane (GEG) → Rockford (RFD).

Distance:
1436
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1436

Round trip?