Distance between Austin TX and San Antonio TX
The distance from Austin to San Antonio is 80 miles by road including 78 miles on motorways. Road takes approximately 1 hour and 13 minutes and goes through Kyle, San Marcos, New Braunfels, Selma and Live Oak.
| 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 | 11.4 USD |
| Point | Distance | Time | Fuel | |
| Austin | 0 mi | 00 min | 0.0 gal | |
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I 35 22 mi, 20 min
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| Kyle | 22 mi | 20 min | 0.7 gal | |
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I 35 8 mi, 07 min
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| San Marcos | 30 mi | 27 min | 1.0 gal | |
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I 35 17 mi, 15 min
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| New Braunfels | 47 mi | 42 min | 1.4 gal | |
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I 35 14 mi, 12 min
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| Selma | 62 mi | 55 min | 2.1 gal | |
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I 35 2 mi, 01 min
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| Live Oak | 64 mi | 57 min | 2.1 gal | |
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I 35 16 mi, 15 min
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| San Antonio | 80 mi | 1 h 13 min | 2.6 gal | |
Frequently Asked Questions
How much does it cost to drive from Austin to San Antonio?
Fuel cost: 11.4 USD
This fuel cost is calculated as: (Route length 79.5 mi) / (Fuel consumption 29.4 mpg) * (Fuel price 4.2 USD / gal)
You can adjust fuel consumption and fuel price here.
How long is a car ride from Austin to San Antonio?
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
- 8 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 Austin to San Antonio by land?
The distance between Austin and San Antonio 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 Austin and San Antonio respectively.
How far is Austin to San Antonio by plane?
The shortest distance (air line, as the crow flies) between Austin and San Antonio 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 Austin and San Antonio respectively. Actual distance between airports may be different.
How many hours is Austin from San Antonio 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 Austin to San Antonio?
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 Austin and San Antonio?
The halfway point between Austin and San Antonio is New Braunfels. It is located about 7 mi from the exact midpoint by road.
The distance from New Braunfels to Austin is 47 mi and driving will take about 42 min. The road between New Braunfels and San Antonio has length 32 mi and will take approximately 30 min.
The other cities located close to halfway point:
- San Marcos is in 30 mi from Austin and 49 mi from San Antonio
Where is Austin in relation to San Antonio?
Austin is located 74 mi north-east of San Antonio.
Austin has geographic coordinates: latitude 30.27113, longitude -97.7437. Click here to see Austin on map.
San Antonio has geographic coordinates: latitude 29.4246, longitude -98.49514. Click here to see San Antonio on map.
Which highway goes from Austin to San Antonio?
The route from Austin to San Antonio follows I 35.
Other minor sections pass along the road:
- US 290: 3 mi
- I 410: 2 mi
