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

The distance between St. Lewis (St. Lewis (Fox Harbour) Airport) and Rockford (Chicago Rockford International Airport) is 1702 miles / 2738 kilometers / 1479 nautical miles.

The driving distance from St. Lewis (YFX) to Rockford (RFD) is 2307 miles / 3713 kilometers, and travel time by car is about 51 hours 28 minutes.

St. Lewis (Fox Harbour) Airport – Chicago Rockford International Airport

Distance arrow
1702
Miles
Distance arrow
2738
Kilometers
Distance arrow
1479
Nautical miles
Flight time duration
3 h 43 min
Time Difference
2 h 30 min
CO2 emission
193 kg

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Distance from St. Lewis to Rockford

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

Vincenty's formula (applied above)
  • 1701.588 miles
  • 2738.441 kilometers
  • 1478.640 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
  • 1697.528 miles
  • 2731.906 kilometers
  • 1475.111 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. Lewis to Rockford?

The estimated flight time from St. Lewis (Fox Harbour) Airport to Chicago Rockford International Airport is 3 hours and 43 minutes.

Flight carbon footprint between St. Lewis (Fox Harbour) Airport (YFX) and Chicago Rockford International Airport (RFD)

On average, flying from St. Lewis to Rockford generates about 193 kg of CO2 per passenger, and 193 kilograms equals 425 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. Lewis to Rockford

See the map of the shortest flight path between St. Lewis (Fox Harbour) Airport (YFX) and Chicago Rockford International Airport (RFD).

Airport information

Origin St. Lewis (Fox Harbour) Airport
City: St. Lewis
Country: Canada Flag of Canada
IATA Code: YFX
ICAO Code: CCK4
Coordinates: 52°22′22″N, 55°40′26″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