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How far is Rockford, IL, from San Jose?

The distance between San Jose (Juan Santamaría International Airport) and Rockford (Chicago Rockford International Airport) is 2237 miles / 3600 kilometers / 1944 nautical miles.

The driving distance from San Jose (SJO) to Rockford (RFD) is 3447 miles / 5548 kilometers, and travel time by car is about 69 hours 23 minutes.

Juan Santamaría International Airport – Chicago Rockford International Airport

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2237
Miles
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3600
Kilometers
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1944
Nautical miles

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Distance from San Jose to Rockford

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

Vincenty's formula (applied above)
  • 2236.931 miles
  • 3599.992 kilometers
  • 1943.840 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
  • 2244.553 miles
  • 3612.257 kilometers
  • 1950.463 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 San Jose to Rockford?

The estimated flight time from Juan Santamaría International Airport to Chicago Rockford International Airport is 4 hours and 44 minutes.

Flight carbon footprint between Juan Santamaría International Airport (SJO) and Chicago Rockford International Airport (RFD)

On average, flying from San Jose to Rockford generates about 245 kg of CO2 per passenger, and 245 kilograms equals 539 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from San Jose to Rockford

See the map of the shortest flight path between Juan Santamaría International Airport (SJO) and Chicago Rockford International Airport (RFD).

Airport information

Origin Juan Santamaría International Airport
City: San Jose
Country: Costa Rica Flag of Costa Rica
IATA Code: SJO
ICAO Code: MROC
Coordinates: 9°59′37″N, 84°12′31″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