How far is San Antonio, TX, from Decatur, IL?
The distance between Decatur (Decatur Airport) and San Antonio (San Antonio International Airport) is 895 miles / 1440 kilometers / 778 nautical miles.
The driving distance from Decatur (DEC) to San Antonio (SAT) is 1036 miles / 1668 kilometers, and travel time by car is about 19 hours 14 minutes.
Decatur Airport – San Antonio International Airport
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Distance from Decatur to San Antonio
There are several ways to calculate the distance from Decatur to San Antonio. Here are two standard methods:
Vincenty's formula (applied above)- 895.020 miles
- 1440.394 kilometers
- 777.751 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- 895.609 miles
- 1441.343 kilometers
- 778.263 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 Decatur to San Antonio?
The estimated flight time from Decatur Airport to San Antonio International Airport is 2 hours and 11 minutes.
What is the time difference between Decatur and San Antonio?
There is no time difference between Decatur and San Antonio.
Flight carbon footprint between Decatur Airport (DEC) and San Antonio International Airport (SAT)
On average, flying from Decatur to San Antonio generates about 143 kg of CO2 per passenger, and 143 kilograms equals 316 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Decatur to San Antonio
See the map of the shortest flight path between Decatur Airport (DEC) and San Antonio International Airport (SAT).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |
| Destination | 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 |