How far is St Augustine, FL, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and St Augustine (Northeast Florida Regional Airport) is 948 miles / 1525 kilometers / 824 nautical miles.
The driving distance from Rockford (RFD) to St Augustine (UST) is 1177 miles / 1894 kilometers, and travel time by car is about 21 hours 37 minutes.
Chicago Rockford International Airport – Northeast Florida Regional Airport
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Distance from Rockford to St Augustine
There are several ways to calculate the distance from Rockford to St Augustine. Here are two standard methods:
Vincenty's formula (applied above)- 947.800 miles
- 1525.337 kilometers
- 823.616 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- 948.934 miles
- 1527.161 kilometers
- 824.601 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 St Augustine?
The estimated flight time from Chicago Rockford International Airport to Northeast Florida Regional Airport is 2 hours and 17 minutes.
What is the time difference between Rockford and St Augustine?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Northeast Florida Regional Airport (UST)
On average, flying from Rockford to St Augustine generates about 147 kg of CO2 per passenger, and 147 kilograms equals 324 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 St Augustine
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Northeast Florida Regional Airport (UST).
Airport information
| Origin | 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 |
| Destination | Northeast Florida Regional Airport |
|---|---|
| City: | St Augustine, FL |
| Country: | United States |
| IATA Code: | UST |
| ICAO Code: | KSGJ |
| Coordinates: | 29°57′33″N, 81°20′23″W |