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Distance between Denver, CO (DEN) and Rockford, IL (RFD)

Flight distance from Denver to Rockford (Denver International Airport – Chicago Rockford International Airport) is 828 miles / 1333 kilometers / 720 nautical miles. Estimated flight time is 2 hours 4 minutes.

Driving distance from Denver (DEN) to Rockford (RFD) is 941 miles / 1514 kilometers and travel time by car is about 16 hours 37 minutes.

Denver – Rockford

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828
Miles
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1333
Kilometers
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720
Nautical miles

How far is Rockford from Denver?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 828.472 miles
  • 1333.296 kilometers
  • 719.922 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
  • 826.472 miles
  • 1330.078 kilometers
  • 718.184 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 Denver to Rockford?

Estimated flight time from Denver International Airport to Chicago Rockford International Airport is 2 hours 4 minutes.

What is the time difference between Denver and Rockford?

The time difference between Denver and Rockford is 1 hour. Rockford is 1 hour ahead of Denver.
Denver time to Rockford time converter

Flight carbon footprint between Denver International Airport (DEN) and Chicago Rockford International Airport (RFD)

On average flying from Denver to Rockford generates about 137 kg of CO2 per passenger, 137 kilograms is equal to 303 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Denver to Rockford

Shortest flight path between Denver International Airport (DEN) and Chicago Rockford International Airport (RFD).

Airport information

Origin Denver International Airport
City: Denver, CO
Country: United States Flag of United States
IATA Code: DEN
ICAO Code: KDEN
Coordinates: 39°51′42″N, 104°40′22″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