How far is Champaign, IL, from San Antonio, TX?
The distance between San Antonio (San Antonio International Airport) and Champaign (University of Illinois Willard Airport) is 926 miles / 1491 kilometers / 805 nautical miles.
The driving distance from San Antonio (SAT) to Champaign (CMI) is 1087 miles / 1750 kilometers, and travel time by car is about 19 hours 28 minutes.
San Antonio International Airport – University of Illinois Willard Airport
Search flights
Distance from San Antonio to Champaign
There are several ways to calculate the distance from San Antonio to Champaign. Here are two standard methods:
Vincenty's formula (applied above)- 926.168 miles
- 1490.523 kilometers
- 804.818 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- 926.690 miles
- 1491.364 kilometers
- 805.272 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 Champaign?
The estimated flight time from San Antonio International Airport to University of Illinois Willard Airport is 2 hours and 15 minutes.
What is the time difference between San Antonio and Champaign?
There is no time difference between San Antonio and Champaign.
Flight carbon footprint between San Antonio International Airport (SAT) and University of Illinois Willard Airport (CMI)
On average, flying from San Antonio to Champaign generates about 146 kg of CO2 per passenger, and 146 kilograms equals 321 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 Champaign
See the map of the shortest flight path between San Antonio International Airport (SAT) and University of Illinois Willard Airport (CMI).
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 | University of Illinois Willard Airport |
|---|---|
| City: | Champaign, IL |
| Country: | United States |
| IATA Code: | CMI |
| ICAO Code: | KCMI |
| Coordinates: | 40°2′21″N, 88°16′41″W |