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

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

The driving distance from Lexington (LEX) to Rockford (RFD) is 449 miles / 723 kilometers, and travel time by car is about 8 hours 34 minutes.

Lexington Blue Grass Airport – Chicago Rockford International 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 Lexington to Rockford

There are several ways to calculate the distance from Lexington to Rockford. 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 Lexington to Rockford?

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

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

On average, flying from Lexington to Rockford 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 Lexington to Rockford

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

Airport information

Origin 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
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