How far is Houston, TX from Sundown, TX?
The driving distance from Houston, TX to Sundown, TX is about 572.8 miles (921.8 km), with a travel time of about 10h 21m by car.
- The straight-line flight distance is about 490.6 miles (789.6 km).
- For a round trip, plan for roughly 20h 42m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 10h 21m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Houston and Sundown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Houston and Sundown.
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1
Start on Louisiana Street
761 ft · 25 sec · Louisiana Street
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2
Take the ramp straight toward I 10 West: San Antonio
2149 ft · 52 sec
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3
Merge slight right onto Katy Freeway
74.1 mi · 1 hr 21 min · Katy Freeway
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4
Take the exit slight right toward TX 71 West: La Grange, Austin
2832 ft · 33 sec
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5
Keep slight left
77.2 mi · 1 hr 22 min
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6
Continue on Bastrop Freeway
1.9 mi · 2 min · Bastrop Freeway
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7
Continue on East State Highway 71
2.2 mi · 3 min · East State Highway 71
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8
Take the exit slight right toward US 183 North, 183 Toll North: Lampasas
2773 ft · 1 min
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9
Merge slight left onto Bastrop Highway
2088 ft · 27 sec · Bastrop Highway
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10
Continue on Bergstrom Expressway
6.2 mi · 6 min · Bergstrom Expressway
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11
Continue straight
14.6 mi · 17 min
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12
Continue straight
14.6 mi · 15 min
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13
Continue on North US Highway 183
35.7 mi · 39 min · North US Highway 183
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14
Continue on South Key Avenue
2.3 mi · 5 min · South Key Avenue
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15
Continue on North US Highway 281
965 ft · 15 sec · North US Highway 281
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16
Keep slight left to continue on North US Highway 183
36.9 mi · 40 min · North US Highway 183
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17
At the end of the road, turn left
30.4 mi · 35 min
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18
Turn left onto Early Boulevard
1.7 mi · 2 min · Early Boulevard
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19
Continue on East Commerce Street
22 mi · 25 min · East Commerce Street
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20
Keep slight right to continue on Wallis Avenue
7.2 mi · 8 min · Wallis Avenue
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21
Turn right onto East Walnut Street
1.5 km · 1 min · East Walnut Street
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22
Continue on West Walnut Street
1 mi · 2 min · West Walnut Street
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23
Continue on State Highway 153
69 mi · 1 hr 14 min · State Highway 153
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24
Keep slight right to continue on State Highway 153
6 m · 1 sec · State Highway 153
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25
Turn right onto State Highway 70
10.4 mi · 11 min · State Highway 70
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26
Continue on Lamar Street
1.3 km · 1 min · Lamar Street
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27
Turn left onto Northwest Georgia Avenue
670 ft · 17 sec · Northwest Georgia Avenue
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28
Take the ramp slight left toward I 20 West: Midland
104 m · 8 sec
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29
Merge slight left
6 mi · 6 min
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30
Take the exit slight right toward US 84 West: Snyder, Lubbock
1721 ft · 20 sec
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31
Keep slight left
74.2 mi · 1 hr 14 min
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32
Turn right onto South Avenue F
1 mi · 2 min · South Avenue F
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33
Keep slight left to continue on North Avenue F
617 ft · 11 sec · North Avenue F
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34
Turn straight onto Ralls Road
1863 ft · 39 sec · Ralls Road
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35
Turn left onto East 15th Street
734 ft · 17 sec · East 15th Street
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36
Turn right onto North US Highway 84
1 mi · 1 min · North US Highway 84
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37
Continue on Highway 84
20 mi · 20 min · Highway 84
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38
Continue on Trooper Jerry Don Davis Memorial Highway
4.6 mi · 5 min · Trooper Jerry Don Davis Memorial Highway
-
39
Continue on East Highway 84
6.8 mi · 7 min · East Highway 84
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40
Continue on Slaton Road
3.3 mi · 4 min · Slaton Road
-
41
Turn left onto Southeast Loop 289
711 ft · 16 sec · Southeast Loop 289
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42
Take the ramp slight left
1417 ft · 34 sec
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43
Merge slight left
5.6 mi · 6 min
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44
Take the exit slight right toward Spur 327: Brownfield
1 km · 49 sec
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45
Keep slight left to continue on Spur 327: Brownfield
1.9 mi · 2 min
-
46
Turn straight onto Marsha Sharp Freeway
1094 ft · 22 sec · Marsha Sharp Freeway
-
47
Take the ramp slight left
1486 ft · 36 sec
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48
Merge slight left onto Marsha Sharp Freeway
5.2 mi · 6 min · Marsha Sharp Freeway
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49
Turn right
26.1 mi · 26 min
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50
Turn left
3.3 mi · 5 min
-
51
Turn left onto East Richardson Street
7 m · 1 sec · East Richardson Street
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52
Arrive at your destination
0 m · 1 sec · East Richardson Street
Car Route Details
A richer read on the saved driving route between Houston and Sundown.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
TX 71 West
Keep slight left
77.2 mi · 01h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Houston and Mostly Sunny near Sundown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Houston to Sundown?
The road trip is about 572.8 miles (921.8 km) and usually takes 10h 21m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Mullin is a useful midpoint, sitting about 286.3 miles from Houston and 286.5 miles from Sundown.
How much longer is the road route than the straight-line distance?
The direct path is about 490.6 miles (789.6 km), while the road route adds roughly 82.2 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $76.37 one way or $152.75 round trip. Estimated CO2 is about 179.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Houston and Mostly Sunny near Sundown.
Stop Ideas Near Mullin
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 Mullin.
Fort Hood, Texas
Killeen, Texas
Flight Path Map
This map shows the direct air route between Houston and Sundown. Straight-line distance: 490.65 mi (789.63 km).
#1 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
#2 Sundown
City in Hockley County, Texas, United States
| Population | 1,414 |
| Coordinates | 33.4562100, -102.4893600 |
| Altitude | 1079 |
| Country | United States |
End: Sundown (-102.48936, 33.45621)
Estimated Travel Time
Distance: 922 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 19h 05m |
| 40 mph (64.37 km/h) | 14h 19m |
| 50 mph (80.47 km/h) | 11h 27m |
| 60 mph (96.56 km/h) | 09h 32m |
| 70 mph (112.65 km/h) | 08h 10m |
| 80 mph (129 km/h) | 07h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $76.37 | $152.75 |
| Mid-grade | $4.25 | $85.93 | $171.87 |
| Premium | $4.59 | $92.78 | $185.57 |
| Diesel | $3.99 | $80.70 | $161.40 |
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 · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.