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How far is North Spirit Lake from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and North Spirit Lake (North Spirit Lake Airport) is 734 miles / 1181 kilometers / 638 nautical miles.

Chicago Rockford International Airport – North Spirit Lake Airport

Distance arrow
734
Miles
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1181
Kilometers
Distance arrow
638
Nautical miles

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Distance from Rockford to North Spirit Lake

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

Vincenty's formula (applied above)
  • 733.790 miles
  • 1180.920 kilometers
  • 637.646 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
  • 733.770 miles
  • 1180.889 kilometers
  • 637.629 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 Rockford to North Spirit Lake?

The estimated flight time from Chicago Rockford International Airport to North Spirit Lake Airport is 1 hour and 53 minutes.

What is the time difference between Rockford and North Spirit Lake?

There is no time difference between Rockford and North Spirit Lake.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and North Spirit Lake Airport (YNO)

On average, flying from Rockford to North Spirit Lake generates about 128 kg of CO2 per passenger, and 128 kilograms equals 283 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to North Spirit Lake

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and North Spirit Lake Airport (YNO).

Airport information

Origin 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
Destination North Spirit Lake Airport
City: North Spirit Lake
Country: Canada Flag of Canada
IATA Code: YNO
ICAO Code: CKQ3
Coordinates: 52°29′24″N, 92°58′15″W