How far is Austin from San Antonio?
Travelers comparing options also check our Austin to San Antonio Shuttle, Austin to Houston Shuttle, and New Braunfels to Austin Shuttle.
Austin is about 79 miles from San Antonio by road — a drive of roughly 1 hr 30 min in normal traffic via I-35. Distance figures below come from live road-network routing between the two downtowns; drive times are typical, and rush hours in San Antonio add 30–45 minutes at peak. Heading there from Austin? See our Texas airport shuttle page for direct service.
The route between Austin and San Antonio
The trip runs I-35 Northeast between downtown San Antonio and downtown Austin, past New Braunfels and San Marcos. Heading there from Austin? See our Mansfield to Austin Shuttle for schedules and direct booking.
Distance and drive-time snapshot
Distance: about 79 road miles between the two downtowns. Typical drive time: 1 hr 30 min in normal traffic. Add 30–45 minutes for metro rush hours around San Antonio. Door-to-door from a specific address adds a few minutes on either end depending on your exact pickup and drop-off points.
Driving times to nearby cities
All figures below from the same live road-network routing (distances are road miles from San Antonio, times are typical driving minutes in normal traffic):
| City | Distance from San Antonio | Typical drive |
|---|---|---|
| Waco, TX | 180 miles | 199 min |
| Houston, TX | 195 miles | 207 min |
| Dallas, TX | 273 miles | 295 min |
Shuttle between Austin and San Antonio
Texas Shuttle runs private, door-to-door shuttle service on this corridor 24/7 — pickup at any address in Austin, drop-off at any address in San Antonio, flat rate, no surge pricing at any hour.
Based on 26 real completed Texas Shuttle trips on this corridor, a private sedan or SUV has typically run $435-$590 each way (25th–75th percentile; most rides land near $471). Round trips save 10% off each way. Heading there from Austin? See our Richmond to Austin Shuttle for schedules and direct booking.
Group travel on this corridor
Shuttle vans seat up to 8 with luggage, so a family or group traveling together pays one flat vehicle price, not per head — often beating per-person rideshare pricing on a corridor this long.
Driving I-35 Between Austin and San Antonio: Small Miles, Real Traffic
Austin to San Antonio is only about 79 miles down I-35, and the free-flow drive runs roughly 1 hour 20 minutes to 1 hour 30 minutes. Few drivers see free-flow conditions, though. The I-35 stretch through Austin and the San Marcos to New Braunfels gap carries some of the heaviest congestion in Texas, so a realistic plan is 1 hour 45 minutes to 2 hours, and 2 hours-plus on Friday afternoons, holiday weekends, and big event days in either city.
San Marcos sits near the midpoint and is the natural stop, with the outlet centers right off the interstate and fuel plazas on both sides. Buda and Kyle line the southern Austin approach, while Selma, Schertz, and Live Oak mark the San Antonio arrival sequence. The whole corridor is posted 65 to 70 mph with frequent enforcement, and the construction zones between Round Rock and San Marcos have been a near-permanent feature, so lane shifts and narrowed shoulders are normal.
Event traffic deserves its own planning line. University of Texas home football weekends, Austin festival season, and San Antonio Fiesta events can each add 30 to 60 minutes to the corridor. Travelers connecting to flights at AUS or SAT should treat the posted drive time as a minimum and add a buffer, since missing a turn onto the airport access roads during peak congestion is easy and recovery loops are long.
For visitors without a car, the corridor logic favors a booked ride over a rental for single round trips: parking downtown in either city is costly, the drive demands constant attention through the construction zones, and a door-to-door shuttle skips the rental counter entirely. Groups heading to weddings, graduations, or River Walk weekends get the same benefit multiplied, with everyone arriving together and nobody drawing the designated-driver short straw.