If you are planning a trip from South Houston to Austin, expect a straightforward journey covering 173.7 miles. You can comfortably complete this 3-hour and 13-minute drive in a single day, making it an ideal candidate for a weekend getaway or a quick business trip. Budgeting approximately $27 for fuel will cover your transit across these Texas plains. The route relies heavily on major arteries like the Gulf Freeway, Katy Freeway, and TX 71 to get you from the coast toward the state capital. Because the entire trip stays within the Great Plains region, the landscape remains consistent throughout your travel. It is a highly efficient route that prioritizes speed and accessibility over winding backroads.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
86.9 miles from South Houston, TX
A natural place for your longest stop of the day
, about 1h 37m into the drive
.
Main Roads
Road
Distance
Duration
TX 71
77.7 mi
1h 22m
Katy Freeway
73.8 mi
1h 20m
Gulf Freeway
10.2 mi
12m
East 7th Street
2.8 mi
4m
East State Highway 71
2.2 mi
2m
Bastrop Freeway
1.9 mi
2m
Winkler Drive
1.1 mi
1m
Bergstrom Expressway
0.7 mi
<1m
Longest stretch:
TX 71
— 77.7 mi, about 1h 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between South Houston, TX and Austin, TX.
1
Start on TX 3
0.6 mi·1 min·Galveston Road
2
Turn left onto TX 3
1.1 mi·1 min·Winkler Drive
Use the right lane.
3
Continue on TX 3
486 ft·8 sec·Monroe Road
4
Turn right onto Gulf Freeway Frontage Road
0.2 mi·19 sec·Gulf Freeway Frontage Road
Use the right lane.
5
Take the ramp
0.2 mi·21 sec
Toward I 45 NorthUse the slight left lane.
6
Merge onto I 45
10 mi·12 min·Gulf Freeway
Use the straight / slight right lanes.
7
Take the exit
0.1 mi·17 sec
Exit 48BToward I 10 West: San AntonioUse the slight left / straight lanes.
8
Merge onto I 10; US 90
74 mi·1 hr 20 min·Katy Freeway
Use the straight / slight right lanes.
9
Take the exit onto TX 71
0.5 mi·33 sec·TX 71
Toward TX 71 West: La Grange, Austin
10
Keep slight left at fork onto TX 71
77 mi·1 hr 22 min·TX 71
Use the straight / slight right lanes.
11
Continue on 71 Toll
1.9 mi·2 min·Bastrop Freeway
Use the straight / slight right lanes.
12
Continue on TX 71
2.2 mi·2 min·East State Highway 71
Use the straight / slight right lanes.
13
Take the exit
0.5 mi·1 min
Toward US 183 North, 183 Toll North: LampasasUse the straight / slight right lanes.
14
Merge onto US 183
0.4 mi·26 sec·Bastrop Highway
15
Continue on 183 Toll
0.7 mi·40 sec·Bergstrom Expressway
Use the straight / slight right lanes.
16
Take the exit
0.5 mi·54 sec
Toward Loop 111: Cesar Chavez Street, 5th Street, 6th Street, 7th Street, Airport BoulevardUse the right lane.
17
Keep slight left at fork onto East 7th Street
2.8 mi·4 min·East 7th Street
Use the straight / slight left lanes.
18
Turn left onto Brushy Street
352 ft·17 sec·Brushy Street
19
Turn right onto East 6th Street
0.6 mi·1 min·East 6th Street
20
Turn left onto Congress Avenue
357 ft·17 sec·Congress Avenue
21
Turn left onto East 5th Street
28 ft·0 sec·East 5th Street
Use the left lane.
22
Arrive at destination
East 5th Street
Trip Plan
To make the most of this 173.7-mile trek, aim to depart early to avoid the heaviest traffic patterns near the Houston metropolitan area. Since the drive is relatively short, you only need to plan for one major stop to stretch your legs or grab a quick refreshment. Keep a close eye on your fuel gauge when you transition onto TX 71, as that 77.7-mile stretch is the longest uninterrupted segment of the trip. Because you are spending the vast majority of your time on highways, stay alert for changing speed limits as you move between suburban and rural zones. Flexibility is a major advantage here, allowing you to reach Austin in just over three hours without the need for an overnight split.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 86.9 miles from South Houston, TX, or about 1h 37m into the drive.
The longest continuous stretch on this route runs about 77.7 miles.
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 38 miles or 43m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 86.9 miles or 1h 37m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 36m
Traffic, exits, and arrival timing usually matter more near Austin, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving South Houston, 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 South Houston, TX
This is one driving day of about 173.7 miles and 3h 13m.
Your first comfortable stop window is around 38 miles from South Houston, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on TX 71 for about 77.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 16
5 decision points cluster between mile 2 and 173.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
2 mi into trip|~3m in
Take the ramp toward I 45 North
Lane positioning matters here
Use the slight left lane.
Toward I 45 North
7
12.4 mi into trip|~15m in
Take the exit toward I 10 West: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left / straight lanes.
Exit 48B
Toward I 10 West: San Antonio
7
168.1 mi into trip|~3h 3m in
Take the exit toward US 183 North, 183 Toll North: Lampasas
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward US 183 North, 183 Toll North: Lampasas
7
169.7 mi into trip|~3h 6m in
Take the exit toward Loop 111: Cesar Chavez Street, 5th Street, 6th Street, 7th Street, Airport Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Toward Loop 111: Cesar Chavez Street, 5th Stree...
7
173.7 mi into trip|~3h 13m in|East 5th Street
Turn left onto East 5th Street
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$26.25 one way
$52.49 round trip
$3.84/gal25.4 MPG avg61 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$28.73
$57.46
premium
$4.54
$31.01
$62.03
diesel
$5.61
$38.35
$76.70
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$26
Meals
$25–$50
Total
$51–$76
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 60.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
52.1
0
$18.24
$8.34
Efficient EV
43.4
0
$15.20
$6.95
EV Truck/SUV
69.5
0
$24.32
$11.12
Gas CO2
61 kg
EV CO2
20 kg (67% 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.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 13, 2026
Origin
South Houston, TX
Morning
in South Houston on Sunday
Local time
9:18 AM
CDT
Current temp
77°F
Unavailable
Live forecast
Destination
Austin, TX
Morning
in Austin on Sunday
Local time
9:18 AM
CDT
Current temp
86°F
Slight Chance Showers And Thunderstorms
S 10 mph19% chanceLive forecast
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued April 13 at 3:08PM CDT until April 13 at 4:15PM CDT by NWS Midland/Odessa TX
Special Weather Statement
Special Weather Statement issued April 13 at 3:02PM CDT by NWS Midland/Odessa TX
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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
9 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 13m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This trip is a highway-focused drive, with 96% of your time spent on high-speed roads. You will navigate through busy metropolitan transit areas before settling into the rhythm of the open road. The most significant portion of your journey is a 77.7-mile stretch along TX 71, which serves as the primary artery for the latter half of your drive. While the initial sections involve navigating the Gulf and Katy Freeways, the transition to TX 71 offers a more consistent pace. Expect a reliable, predictable experience behind the wheel that favors steady cruising over technical maneuvering.
96% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 77.7 mi on TX 71.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on TX 71 and Katy Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2 miles in.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 173.7 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 2 miles: Lane positioning matters here; at 12.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 168.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Austin is a city of about 1,054,000 (2026) surpassing Fort Worth to become the 4th most populous city in Texas. It is on the southeast edge of the Hill Country region of Texas, making it the fourth-largest city in the state and the 11th-largest in the country. It is the capital of Texas and a college town, and also a center of an alternative culture away from the major cities on the US coasts, though the city is rapidly gentrifying with its rising popularity. Austin's attitude is commonly emblazoned about town on T-shirts and bumper stickers that read: "Keep Austin Weird." Austin is also marketed as the Live Music Capital of the World due to the large number of venues.
Top landmarks
•Texas State Capitol — capitol and seat of government of the U.S. state of Texas
•Lyndon Baines Johnson Library and Museum — presidential library and museum for U.S. President Lyndon B. Johnson in Austin,...
•Texas State Cemetery — historic cemetery in Austin, Texas, USA
Doable as a same-day drive at 3h 13m. Total distance: 173.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 13m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 77.7 miles on TX 71. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Austin, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 2 miles: Lane positioning matters here; at 12.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 168.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 3.2 hours each way, an in-and-out day trip would put you behind the wheel for 6.5 hours — manageable with a long break at Austin, TX, but most travelers stay overnight.
