How far is Sour Lake, TX from Austin, TX?
The driving distance from Sour Lake, TX to Austin, TX is about 233.3 miles (375.5 km), with a travel time of about 03h 56m by car.
- The straight-line flight distance is about 199.1 miles (320.5 km).
- For a round trip, plan for roughly 07h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 56m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sour Lake and Austin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sour Lake and Austin.
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1
Start on 5th Street
2377 ft · 43 sec · 5th Street
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2
Turn right onto State Highway 326
7.1 mi · 10 min · State Highway 326
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3
Turn right
29.5 mi · 34 min
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4
Turn right onto North Cleveland Street
1028 ft · 24 sec · North Cleveland Street
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5
Turn left onto West Clayton Street
5.1 mi · 7 min · West Clayton Street
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6
Turn right onto East Grand Parkway North
534 ft · 15 sec · East Grand Parkway North
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7
Take the ramp straight
1295 ft · 36 sec
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8
Merge slight left onto East Grand Parkway North
56.3 mi · 1 hr · East Grand Parkway North
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9
Take the exit slight right toward US 290: Austin, Houston
1889 ft · 46 sec
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10
Keep slight right to continue on US 290 West, TX 6 North: Austin
1.1 km · 1 min
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11
Merge slight left onto Northwest Freeway
23 mi · 27 min · Northwest Freeway
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12
Continue on US Highway 290
19 mi · 21 min · US Highway 290
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13
Take the exit slight right toward US 290 West: Austin
53.4 mi · 1 hr
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14
Continue straight
21.4 mi · 25 min
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15
Continue on Manor Expressway
6.1 mi · 6 min · Manor Expressway
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16
Continue straight
1.6 mi · 2 min
-
17
Take the exit slight right toward I 35 South, US 290 West
1.1 mi · 2 min
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18
Merge slight left onto Purple Heart Trail
1.6 km · 1 min · Purple Heart Trail
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19
Keep slight left to continue on Purple Heart Trail
2.4 mi · 3 min · Purple Heart Trail
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20
Take the exit slight right toward 8th–3rd Streets, Huston-Tillotson University
1096 ft · 27 sec
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21
Turn straight onto North Interstate 35
948 ft · 27 sec · North Interstate 35
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22
Turn right onto East 6th Street
2578 ft · 1 min · East 6th Street
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23
Turn left onto Congress Avenue
109 m · 18 sec · Congress Avenue
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24
Turn left onto East 5th Street
8 m · 1 sec · East 5th Street
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25
Arrive at your destination
0 m · 1 sec · East 5th Street
Car Route Details
A richer read on the saved driving route between Sour Lake and Austin.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
East Grand Parkway North
Merge slight left onto East Grand Parkway North
56.3 mi · 01h 00m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Showers And Thunderstorms then Showers And Thunderstorms leaving Sour Lake and Chance Showers And Thunderstorms near Austin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sour Lake to Austin?
The road trip is about 233.3 miles (375.5 km) and usually takes 03h 56m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Prairie View is a useful midpoint, sitting about 114.8 miles from Sour Lake and 118.5 miles from Austin.
How much longer is the road route than the straight-line distance?
The direct path is about 199.1 miles (320.5 km), while the road route adds roughly 34.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:08 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.10 one way or $62.20 round trip. Estimated CO2 is about 73.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Showers And Thunderstorms around Sour Lake and Chance Showers And Thunderstorms near Austin.
Stop Ideas Near Prairie View
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Prairie View.
Prairie View, TX
Houston
Houston, TX
Bryan, TX
Flight Path Map
This map shows the direct air route between Sour Lake and Austin. Straight-line distance: 199.16 mi (320.51 km).
#1 Sour Lake
City in Hardin County, Texas, United States
| Population | 1,948 |
| Coordinates | 30.1402100, -94.4110200 |
| Altitude | 15 |
| Country | United States |
#2 Austin
The eleventh most populous city in the United States and the center of the Austin metropolitan area.
| Population | 995,484 |
| Coordinates | 30.2671500, -97.7430600 |
| Altitude | 149 |
| Country | United States |
End: East 5th Street (-97.743073, 30.267115)
Estimated Travel Time
Distance: 375 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 46m |
| 40 mph (64.37 km/h) | 05h 49m |
| 50 mph (80.47 km/h) | 04h 39m |
| 60 mph (96.56 km/h) | 03h 53m |
| 70 mph (112.65 km/h) | 03h 19m |
| 80 mph (129 km/h) | 02h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $31.10 | $62.20 |
| Mid-grade | $4.25 | $34.99 | $69.99 |
| Premium | $4.59 | $37.78 | $75.57 |
| Diesel | $3.99 | $32.86 | $65.72 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.