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How far is Rockford, IL, from St. Anthony?

The distance between St. Anthony (St. Anthony Airport) and Rockford (Chicago Rockford International Airport) is 1672 miles / 2692 kilometers / 1453 nautical miles.

The driving distance from St. Anthony (YAY) to Rockford (RFD) is 2478 miles / 3988 kilometers, and travel time by car is about 58 hours 1 minutes.

St. Anthony Airport – Chicago Rockford International Airport

Distance arrow
1672
Miles
Distance arrow
2692
Kilometers
Distance arrow
1453
Nautical miles
Flight time duration
3 h 39 min
Time Difference
2 h 30 min
CO2 emission
191 kg

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Distance from St. Anthony to Rockford

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

Vincenty's formula (applied above)
  • 1672.425 miles
  • 2691.507 kilometers
  • 1453.297 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
  • 1668.356 miles
  • 2684.959 kilometers
  • 1449.762 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 St. Anthony to Rockford?

The estimated flight time from St. Anthony Airport to Chicago Rockford International Airport is 3 hours and 39 minutes.

Flight carbon footprint between St. Anthony Airport (YAY) and Chicago Rockford International Airport (RFD)

On average, flying from St. Anthony to Rockford generates about 191 kg of CO2 per passenger, and 191 kilograms equals 421 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from St. Anthony to Rockford

See the map of the shortest flight path between St. Anthony Airport (YAY) and Chicago Rockford International Airport (RFD).

Airport information

Origin St. Anthony Airport
City: St. Anthony
Country: Canada Flag of Canada
IATA Code: YAY
ICAO Code: CYAY
Coordinates: 51°23′30″N, 56°4′59″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