How far is Rockford, IL, from San Antonio, TX?
The distance between San Antonio (San Antonio International Airport) and Rockford (Chicago Rockford International Airport) is 1018 miles / 1638 kilometers / 884 nautical miles.
The driving distance from San Antonio (SAT) to Rockford (RFD) is 1191 miles / 1916 kilometers, and travel time by car is about 22 hours 1 minutes.
San Antonio International Airport – Chicago Rockford International Airport
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Distance from San Antonio to Rockford
There are several ways to calculate the distance from San Antonio to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 1017.665 miles
- 1637.774 kilometers
- 884.327 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- 1018.660 miles
- 1639.374 kilometers
- 885.191 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 Antonio to Rockford?
The estimated flight time from San Antonio International Airport to Chicago Rockford International Airport is 2 hours and 25 minutes.
What is the time difference between San Antonio and Rockford?
There is no time difference between San Antonio and Rockford.
Flight carbon footprint between San Antonio International Airport (SAT) and Chicago Rockford International Airport (RFD)
On average, flying from San Antonio to Rockford generates about 152 kg of CO2 per passenger, and 152 kilograms equals 335 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 Antonio to Rockford
See the map of the shortest flight path between San Antonio International Airport (SAT) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | San Antonio International Airport |
|---|---|
| City: | San Antonio, TX |
| Country: | United States  |
| IATA Code: | SAT |
| ICAO Code: | KSAT |
| Coordinates: | 29°32′1″N, 98°28′11″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 |