Distance between San Antonio TX and Austin TX
The distance from San Antonio to Austin is 80 miles by road including 78 miles on motorways. Road takes approximately 1 hour and 13 minutes and goes through New Braunfels, San Marcos, Kyle, Live Oak and Selma.
| Shortest distance by air | 74 mi ✈️ |
| Car route length | 79.5 mi 🚗 |
| Driving time | 1 h 13 min |
| Fuel amount | 2.7 gal |
| Fuel cost | 10.7 USD |
| Point | Distance | Time | Fuel | |
| San Antonio | 0 mi | 00 min | 0.0 gal | |
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I 35 16 mi, 15 min
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| Live Oak | 16 mi | 15 min | 0.5 gal | |
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I 35 2 mi, 02 min
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| Selma | 18 mi | 17 min | 0.6 gal | |
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I 35 15 mi, 13 min
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| New Braunfels | 33 mi | 31 min | 0.8 gal | |
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I 35 17 mi, 14 min
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| San Marcos | 50 mi | 45 min | 1.6 gal | |
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I 35 7 mi, 05 min
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| Kyle | 56 mi | 51 min | 1.8 gal | |
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I 35 24 mi, 21 min
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| Austin | 80 mi | 1 h 13 min | 2.3 gal | |
Hotels of Austin
Frequently Asked Questions
How much does it cost to drive from San Antonio to Austin?
Fuel cost: 10.7 USD
This fuel cost is calculated as: (Route length 79.5 mi) / (Fuel consumption 29.4 mpg) * (Fuel price 3.93 USD / gal)
You can adjust fuel consumption and fuel price here.
How long is a car ride from San Antonio to Austin?
Driving time: 1 h 13 min
This time is calculated for driving at the maximum permitted speed, taking into account traffic rules restrictions.
- 56 mi with a maximum speed 68 mph = 49 min
- 7 mi with a maximum speed 65 mph = 7 min
- 14 mi with a maximum speed 60 mph = 13 min
- 2 mi with a maximum speed 50 mph = 2 min
The calculated driving time does not take into account intermediate stops and traffic jams.
How far is San Antonio to Austin by land?
The distance between San Antonio and Austin is 79.5 mi by road including 77.7 mi on motorways.
Precise satellite coordinates of highways were used for this calculation. The start and finish points are the centers of San Antonio and Austin respectively.
How far is San Antonio to Austin by plane?
The shortest distance (air line, as the crow flies) between San Antonio and Austin is 73.9 mi.
This distance is calculated using the Haversine formula as a great-circle distance between two points on the surface of a sphere. The start and finish points are the centers of San Antonio and Austin respectively. Actual distance between airports may be different.
How many hours is San Antonio from Austin by plane?
Boeing 737 airliner needs 8 min to cover the distance of 74 mi at a cruising speed of 497 mph.
Small plane "Cessna 172" needs 32 min to flight this distance at average speed of 136 mph.
This time is approximate and do not take into account takeoff and landing times, airport location and other real world factors.
How long is a helicopter ride from San Antonio to Austin?
Fast helicopter "Eurocopter AS350" or "Hughes OH-6 Cayuse" need 29 min to cover the distance of 74 mi at a cruising speed of 149 mph.
Popular "Robinson R44" needs 34 min to flight this distance at average speed of 130 mph.
This time is approximate and do not take into account takeoff and landing times, aerodrome location and other real world factors.
What city is halfway between San Antonio and Austin?
The halfway point between San Antonio and Austin is New Braunfels. It is located about 7 mi from the exact midpoint by road.
The distance from New Braunfels to San Antonio is 33 mi and driving will take about 31 min. The road between New Braunfels and Austin has length 47 mi and will take approximately 42 min.
The other cities located close to halfway point:
Where is San Antonio in relation to Austin?
San Antonio is located 74 mi south-west of Austin.
San Antonio has geographic coordinates: latitude 29.4246, longitude -98.49514.
Austin has geographic coordinates: latitude 30.27113, longitude -97.7437.
Which highway goes from San Antonio to Austin?
The route from San Antonio to Austin follows I 35.
Other minor sections pass along the road:
- US 290: 3 mi
- I 410: 2 mi