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How far is Rockford, IL, from Lisbon?

The distance between Lisbon (Lisbon Airport) and Rockford (Chicago Rockford International Airport) is 4057 miles / 6530 kilometers / 3526 nautical miles.

Lisbon Airport – Chicago Rockford International Airport

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4057
Miles
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6530
Kilometers
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3526
Nautical miles

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Distance from Lisbon to Rockford

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

Vincenty's formula (applied above)
  • 4057.357 miles
  • 6529.684 kilometers
  • 3525.747 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
  • 4047.221 miles
  • 6513.371 kilometers
  • 3516.939 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 Lisbon to Rockford?

The estimated flight time from Lisbon Airport to Chicago Rockford International Airport is 8 hours and 10 minutes.

Flight carbon footprint between Lisbon Airport (LIS) and Chicago Rockford International Airport (RFD)

On average, flying from Lisbon to Rockford generates about 464 kg of CO2 per passenger, and 464 kilograms equals 1 022 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Lisbon to Rockford

See the map of the shortest flight path between Lisbon Airport (LIS) and Chicago Rockford International Airport (RFD).

Airport information

Origin Lisbon Airport
City: Lisbon
Country: Portugal Flag of Portugal
IATA Code: LIS
ICAO Code: LPPT
Coordinates: 38°46′52″N, 9°8′9″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