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Create accountDrive Time
1h 30m
Distance
79.2 mi
127 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$12
one way
Austin, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Connecting Austin and San Antonio, this 79.9-mile journey is a quick, straightforward trip across the Texas Great Plains. You can expect to spend about 1 hour and 20 minutes behind the wheel, making this an ideal day trip that requires no overnight stops. Budgeting approximately $12 for fuel will cover your transit via Interstate 35, I-35 South, and the Purple Heart Trail. Because the transit time is so brief, you have plenty of flexibility to plan your departure around your own schedule. Whether you are heading south for business or a change of scenery, this route is one of the most efficient ways to travel between these two major hubs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
39.6 miles from Austin, TX
A natural place for your longest stop of the day , about 44m into the drive .
Expect a turn-heavy local drive rather than a monotonous, high-speed cruise. While you will be utilizing major arteries like I-35, the nature of the route requires your full attention due to the frequent turns and local traffic patterns. There is no significant highway-only stretch to zone out on, so you should prepare for an active driving experience. As you navigate from Austin toward San Antonio, the road demands consistent engagement. It is a practical, functional transit that moves you efficiently through the region without long, uninterrupted stretches of open road.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.5 miles in near North Interstate 35.
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 14 significant decision points across 79.2 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.5 miles (North Interstate 35): Lane positioning matters here; at 71.1 miles (I 35 / North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here; at 77.5 miles (I 35 / North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
These are the spots where you need to pay the most attention. Preview them before you drive.
At end of road, turn right onto North Interstate 35
Lane positioning matters here
Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight left at fork onto I 35 / North Pan Am Expressway toward I 35 South: Lower Level, Laredo
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward Lexington Avenue, Main Avenue, San Pedro Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn left onto North Main Avenue
Lane positioning matters here
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 58.3 mi | 1h 3m |
| North Pan Am Expressway | 17 mi | 20m |
| Interstate Highway 35 | 1.7 mi | 1m |
| North Main Avenue | 0.6 mi | 1m |
| East 5th Street | 0.5 mi | 1m |
| North Interstate 35 | 0.4 mi | <1m |
| North Flores Street | 0.2 mi | <1m |
| East Elmira Street | <0.1 mi | <1m |
Step-by-step road directions between Austin, TX and San Antonio, TX.
Start on East 5th Street
At end of road, turn right onto North Interstate 35
Take the ramp
Merge onto I 35; US 290
Continue on I 35
Continue on I 35
Continue on I 35
Keep slight left at fork onto I 35
Keep slight left at fork onto I 35
Take the exit
Turn straight onto East Elmira Street
Turn left onto North Main Avenue
Enter roundabout onto Navarro Street
Continue on Navarro Street
Keep slight right at fork onto North Main Avenue
Turn right onto West Travis Street
Turn left onto North Flores Street
Continue on Military Plaza
Turn left onto Dolorosa Street
Arrive at destination
Since this is a short 1 hour and 20-minute drive, you do not need to worry about extensive rest stops or rigid pacing. I recommend checking real-time traffic reports for I-35 before you head out, as congestion can fluctuate significantly along this corridor. Because the total fuel cost is a modest $12, you can easily fill up at your origin or destination without needing to hunt for gas stations mid-trip. Use the flexibility of this short travel time to your advantage by avoiding peak rush hours in either city. Staying alert for changing traffic patterns on the Purple Heart Trail will make your transit much smoother.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 79.2 miles or 1h 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 39.6 miles or 44m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 14m
Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.
Open the route before leaving Austin, TX so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Austin, TX
This is one driving day of about 79.2 miles and 1h 30m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 39.6 mi from Austin, TX · 44m into the drive
Mid-route town
Meal stop
40 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 79.2 miles helps settle the day before fatigue starts building.
The midpoint is around 39.6 miles from Austin, TX, which is a good place for a longer meal and fuel stop.
The final approach into San Antonio, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Antonio, TX.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Interesting stops within a short detour of your drive.
Cafe
Near the start, right off the route
Austin, TX
Cuisine: coffee_shop
Hours: Mo-Su 07:00-19:00
Visit websiteCafe
Near the start, right off the route
Austin, TX
Cuisine: crepe;french
Hours: Mo-Sa 07:00-15:00; Su 08:00-15:00
Visit websiteCafe
Near the end, right off the route
San Antonio, TX
Cuisine: coffee_shop
Visit websiteCafe
Near the start, right off the route
Cuisine: coffee_shop
Hours: Mo-Fr 05:30-21:00, Sa,Su 06:30-19:00
Cafe
Near the start, right off the route
Austin, TX
Cuisine: coffee_shop
Hours: Mo-Su 05:00-19:00
Visit websiteCafe
Near the start, right off the route
Cuisine: coffee_shop
Restaurant
Near the start, right off the route
Austin, TX
Hours: Mo-Sa 11:00-24:00, Su 11:00-23:00
Visit websiteRestaurant
Near the start, right off the route
Austin, TX
Cuisine: sushi
Hours: Mo-Th 11:30-14:00,16:00-22:00; Sa 12:30-...
Visit websiteRestaurant
Near the end, right off the route
San Antonio, TX
Hours: Mo-Su 14:00-02:00
Visit websiteRestaurant
Near the end, right off the route
San Antonio, TX
Cuisine: barbecue
Visit websiteRestaurant
Near the end, right off the route
San Antonio, TX
Cuisine: seafood
Hours: Su-Th 11:00-22:00; Fr-Sa 11:00-23:00
Visit websiteRestaurant
Near the end, right off the route
San Antonio, TX
Cuisine: mexican
Visit websiteAttraction
Near the end, right off the route
Attraction
Near the end, right off the route
Attraction
Near the end, right off the route
Attraction
Near the start, right off the route
Viewpoint
Near the start, right off the route
Attraction
Near the end, right off the route
Museum
Near the end, right off the route
Monument
Near the end, right off the route
Museum
Near the end, right off the route
TX
Visit websiteMonument
Near the start, right off the route
Artwork
Near the start, right off the route
Museum
Near the end, right off the route
Guest_house
Near the end, right off the route
Guest_house
Near the end, short detour
Guest_house
Near the end, short detour
Motel
Near the end, short detour
Motel
Near the end, short detour
Motel
Near the end, short detour
Points of interest from OpenStreetMap contributors. Listings may not reflect current hours or availability.
Regular Gas
$12.10 one way
$24.20 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $13.26 | $26.52 |
| premium | $4.59 | $14.32 | $28.63 |
| diesel | $5.64 | $17.60 | $35.19 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 27.7 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $8 in charging · 0 stops · 68% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 23.8 | 0 | $8.32 | $3.80 |
| Efficient EV | 19.8 | 0 | $6.93 | $3.17 |
| EV Truck/SUV | 31.7 | 0 | $11.09 | $5.07 |
Gas CO2
28 kg
EV CO2
9 kg (68% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Afternoon in Austin on Sunday
Local time
2:27 PM
CDT
Current temp
65°F
Unavailable
Destination
Afternoon in San Antonio on Sunday
Local time
2:27 PM
CDT
Current temp
81°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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