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How far is Lexington, KY, from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Lexington (Lexington Blue Grass Airport) is 373 miles / 600 kilometers / 324 nautical miles.

The driving distance from Rockford (RFD) to Lexington (LEX) is 449 miles / 722 kilometers, and travel time by car is about 8 hours 34 minutes.

Chicago Rockford International Airport – Lexington Blue Grass Airport

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373
Miles
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600
Kilometers
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324
Nautical miles

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Distance from Rockford to Lexington

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

Vincenty's formula (applied above)
  • 372.623 miles
  • 599.679 kilometers
  • 323.801 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
  • 372.559 miles
  • 599.575 kilometers
  • 323.745 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 Lexington?

The estimated flight time from Chicago Rockford International Airport to Lexington Blue Grass Airport is 1 hour and 12 minutes.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Lexington Blue Grass Airport (LEX)

On average, flying from Rockford to Lexington generates about 80 kg of CO2 per passenger, and 80 kilograms equals 176 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Rockford to Lexington

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Lexington Blue Grass Airport (LEX).

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 Lexington Blue Grass Airport
City: Lexington, KY
Country: United States Flag of United States
IATA Code: LEX
ICAO Code: KLEX
Coordinates: 38°2′11″N, 84°36′21″W