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How far is Rockford, IL, from Glasgow, MT?

The distance between Glasgow (Glasgow Valley County Airport) and Rockford (Chicago Rockford International Airport) is 948 miles / 1525 kilometers / 824 nautical miles.

The driving distance from Glasgow (GGW) to Rockford (RFD) is 1117 miles / 1798 kilometers, and travel time by car is about 20 hours 24 minutes.

Glasgow Valley County Airport – Chicago Rockford International Airport

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948
Miles
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1525
Kilometers
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824
Nautical miles

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Distance from Glasgow to Rockford

There are several ways to calculate the distance from Glasgow to Rockford. Here are two standard methods:

Vincenty's formula (applied above)
  • 947.854 miles
  • 1525.424 kilometers
  • 823.663 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
  • 945.809 miles
  • 1522.132 kilometers
  • 821.885 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 Glasgow to Rockford?

The estimated flight time from Glasgow Valley County Airport to Chicago Rockford International Airport is 2 hours and 17 minutes.

Flight carbon footprint between Glasgow Valley County Airport (GGW) and Chicago Rockford International Airport (RFD)

On average, flying from Glasgow to Rockford generates about 147 kg of CO2 per passenger, and 147 kilograms equals 324 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Glasgow to Rockford

See the map of the shortest flight path between Glasgow Valley County Airport (GGW) and Chicago Rockford International Airport (RFD).

Airport information

Origin Glasgow Valley County Airport
City: Glasgow, MT
Country: United States Flag of United States
IATA Code: GGW
ICAO Code: KGGW
Coordinates: 48°12′45″N, 106°36′53″W
Destination 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