How far is Sundown, TX from Houston, TX?
The driving distance from Sundown, TX to Houston, TX is about 559.1 miles (899.8 km), with a travel time of about 09h 01m by car.
- The straight-line flight distance is about 490.6 miles (789.6 km).
- For a round trip, plan for roughly 18h 03m 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 09h 01m.
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
Driving Route Map
The map below follows the saved road route between Sundown and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sundown and Houston.
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1
Start on East Richardson Street
7 m · 3 sec · East Richardson Street
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2
Turn right onto South Slaughter Avenue
1.4 km · 2 min · South Slaughter Avenue
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3
Continue on North FM 303
2.4 mi · 3 min · North FM 303
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4
Turn right onto West FM 1585
10 mi · 10 min · West FM 1585
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5
Keep slight right
16.2 mi · 16 min
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6
Turn left
5.8 mi · 7 min
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7
Take the exit slight right toward Spur 327
2.1 mi · 3 min
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8
Merge slight left
5.9 mi · 7 min
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9
Take the exit slight right toward US 84: Slaton, Post
1355 ft · 33 sec
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10
Turn straight onto Southeast Loop 289
1603 ft · 34 sec · Southeast Loop 289
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11
Take the ramp straight
635 ft · 17 sec
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12
Merge slight left onto Slaton Road
2.9 mi · 3 min · Slaton Road
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13
Continue on East Highway 84
6.9 mi · 7 min · East Highway 84
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14
Continue on Trooper Jerry Don Davis Memorial Highway
4.5 mi · 5 min · Trooper Jerry Don Davis Memorial Highway
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15
Continue on East Highway 84
20 mi · 20 min · East Highway 84
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16
Continue on North US Highway 84
1 mi · 1 min · North US Highway 84
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17
Turn left onto East 15th Street
734 ft · 17 sec · East 15th Street
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18
Turn right onto Ralls Road
1863 ft · 38 sec · Ralls Road
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19
Turn straight onto North Avenue F
1.1 mi · 2 min · North Avenue F
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20
At the end of the road, turn left onto US Highway 84
73.9 mi · 1 hr 14 min · US Highway 84
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21
Keep slight left to continue on I 20 East, US 84 East: Abilene
6.5 mi · 7 min
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22
Take the exit slight right toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
737 ft · 18 sec
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23
Turn slight left onto Southwest Georgia Avenue
624 ft · 17 sec · Southwest Georgia Avenue
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24
Turn right onto Lamar Street
1.2 km · 1 min · Lamar Street
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25
Continue on State Highway 70
10.4 mi · 11 min · State Highway 70
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26
Turn left onto State Highway 153
69 mi · 1 hr 14 min · State Highway 153
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27
Continue on West Walnut Street
1.6 km · 2 min · West Walnut Street
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28
Continue on East Walnut Street
1.5 km · 1 min · East Walnut Street
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29
At the end of the road, turn left
9.4 mi · 11 min
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30
Continue straight
21.5 mi · 25 min
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31
Turn right onto Garmon Drive
1.3 mi · 1 min · Garmon Drive
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32
Continue on US Highway 84 East
29.2 mi · 33 min · US Highway 84 East
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33
Turn right
22.2 mi · 25 min
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34
Continue straight
14.8 mi · 15 min
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35
Merge slight left onto North US Highway 281
79 m · 4 sec · North US Highway 281
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36
Continue on North Key Avenue
2.3 mi · 5 min · North Key Avenue
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37
Continue on South US Highway 183
35.3 mi · 38 min · South US Highway 183
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38
Continue straight
2151 ft · 30 sec
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39
Keep slight left to continue on 183A Toll Road
14.3 mi · 14 min · 183A Toll Road
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40
Continue straight
14.8 mi · 17 min
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41
Continue on Bergstrom Expressway
6.3 mi · 7 min · Bergstrom Expressway
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42
Continue on Bastrop Highway
2119 ft · 26 sec · Bastrop Highway
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43
Take the exit slight left toward TX 71 East: Austin-Bergstrom International Airport
2541 ft · 1 min
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44
Continue on East State Highway 71
2.2 mi · 3 min · East State Highway 71
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45
Turn straight onto Bastrop Freeway
1.9 mi · 2 min · Bastrop Freeway
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46
Continue on East State Highway 71
2388 ft · 29 sec · East State Highway 71
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47
Continue on Texas State Highway 71
137 mi · 2 hr 25 min · Texas State Highway 71
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48
Take the exit slight left toward I 10 Toll: Katy Tollway
1548 ft · 22 sec
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49
Merge slight left onto Katy Tollway
3.2 mi · 4 min · Katy Tollway
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50
Take the exit slight right
1092 ft · 15 sec
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51
Merge slight right onto Katy Freeway
10.7 mi · 13 min · Katy Freeway
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52
Take the exit slight right toward Downtown, Theatre District
2064 ft · 52 sec
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53
Continue on Smith Street
704 ft · 29 sec · Smith Street
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54
Turn left onto Preston Street
101 m · 17 sec · Preston Street
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55
Turn left onto Louisiana Street
55 m · 5 sec · Louisiana Street
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56
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Sundown and Houston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Texas State Highway 71
Continue on Texas State Highway 71
137 mi · 02h 25m
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 Sundown and Mostly Sunny near Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sundown to Houston?
The road trip is about 559.1 miles (899.8 km) and usually takes 09h 01m 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 286.4 miles from Sundown and 272.8 miles from Houston.
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 68.5 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 $74.56 one way or $149.12 round trip. Estimated CO2 is about 175.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Sundown and Mostly Sunny near Houston.
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 Sundown and Houston. Straight-line distance: 490.65 mi (789.63 km).
#1 Sundown
City in Hockley County, Texas, United States
| Population | 1,414 |
| Coordinates | 33.4562100, -102.4893600 |
| Altitude | 1079 |
| Country | United States |
#2 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 |
End: Louisiana Street (-95.363596, 29.76347)
Estimated Travel Time
Distance: 900 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 18h 37m |
| 40 mph (64.37 km/h) | 13h 58m |
| 50 mph (80.47 km/h) | 11h 10m |
| 60 mph (96.56 km/h) | 09h 19m |
| 70 mph (112.65 km/h) | 07h 59m |
| 80 mph (129 km/h) | 06h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $74.56 | $149.12 |
| Mid-grade | $4.25 | $83.89 | $167.78 |
| Premium | $4.59 | $90.58 | $181.16 |
| Diesel | $3.99 | $78.78 | $157.56 |
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.