How far is Rockford, IL, from San Juan?
The distance between San Juan (San Juan Luis Muñoz Marín International Airport) and Rockford (Chicago Rockford International Airport) is 2126 miles / 3422 kilometers / 1848 nautical miles.
San Juan Luis Muñoz Marín International Airport – Chicago Rockford International Airport
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Distance from San Juan to Rockford
There are several ways to calculate the distance from San Juan to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 2126.186 miles
- 3421.765 kilometers
- 1847.605 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- 2128.229 miles
- 3425.053 kilometers
- 1849.381 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 Juan to Rockford?
The estimated flight time from San Juan Luis Muñoz Marín International Airport to Chicago Rockford International Airport is 4 hours and 31 minutes.
What is the time difference between San Juan and Rockford?
The time difference between San Juan and Rockford is 1 hour. Rockford is 1 hour behind San Juan.
Flight carbon footprint between San Juan Luis Muñoz Marín International Airport (SJU) and Chicago Rockford International Airport (RFD)
On average, flying from San Juan to Rockford generates about 232 kg of CO2 per passenger, and 232 kilograms equals 511 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from San Juan to Rockford
See the map of the shortest flight path between San Juan Luis Muñoz Marín International Airport (SJU) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | San Juan Luis Muñoz Marín International Airport |
|---|---|
| City: | San Juan |
| Country: | Puerto Rico  |
| IATA Code: | SJU |
| ICAO Code: | TJSJ |
| Coordinates: | 18°26′21″N, 66°0′6″W |
| Destination | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States  |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |