How far is Montopolis, TX from South Houston, TX?
The driving distance from Montopolis, TX to South Houston, TX is about 169.9 miles (273.4 km), with a travel time of about 03h 06m by car.
- The straight-line flight distance is about 152.4 miles (245.2 km).
- For a round trip, plan for roughly 06h 13m 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 06m.
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 Colorado County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Mostly Cloudy
Chance Rain Showers then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Montopolis and South Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Montopolis and South Houston.
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1
Start on 183 Toll South: Lockhart
67 m · 5 sec
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2
Merge slight left onto Bergstrom Expressway
1.3 km · 47 sec · Bergstrom Expressway
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3
Continue on Bastrop Highway
2119 ft · 26 sec · Bastrop Highway
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4
Take the exit slight left toward TX 71 East: Austin-Bergstrom International Airport
2541 ft · 1 min
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5
Continue on East State Highway 71
2.2 mi · 3 min · East State Highway 71
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6
Turn straight onto Bastrop Freeway
1.9 mi · 2 min · Bastrop Freeway
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7
Continue on East State Highway 71
2388 ft · 29 sec · East State Highway 71
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8
Continue on Texas State Highway 71
137 mi · 2 hr 25 min · Texas State Highway 71
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9
Take the exit slight left toward I 10 Toll: Katy Tollway
1548 ft · 22 sec
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10
Merge slight left onto Katy Tollway
3.2 mi · 4 min · Katy Tollway
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11
Take the exit slight right
1092 ft · 15 sec
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12
Merge slight right onto Katy Freeway
10.3 mi · 13 min · Katy Freeway
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13
Take the exit slight left toward I 45 South: Galveston
819 ft · 20 sec
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14
Merge slight left onto Gulf Freeway
10.1 mi · 12 min · Gulf Freeway
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15
Take the exit slight right toward TX 3: Monroe Road
737 ft · 18 sec
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16
Turn straight onto Gulf Freeway Frontage Road
1530 ft · 31 sec · Gulf Freeway Frontage Road
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17
Turn left onto Monroe Road
991 ft · 25 sec · Monroe Road
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18
Continue on Winkler Drive
1.1 mi · 2 min · Winkler Drive
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19
Turn right onto Galveston Road
1 km · 59 sec · Galveston Road
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20
Arrive at your destination
0 m · 1 sec · Galveston Road
Car Route Details
A richer read on the saved driving route between Montopolis and South Houston.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
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.
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.
Slight Chance Rain Showers then Mostly Cloudy leaving Montopolis and Chance Rain Showers then Mostly Cloudy near South Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Montopolis to South Houston?
The road trip is about 169.9 miles (273.4 km) and usually takes 03h 06m 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?
Columbus is a useful midpoint, sitting about 84.9 miles from Montopolis and 85 miles from South Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 152.4 miles (245.2 km), while the road route adds roughly 17.5 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.64 one way or $45.27 round trip. Estimated CO2 is about 53.2 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Cloudy around Montopolis and Chance Rain Showers then Mostly Cloudy near South Houston.
Stop Ideas Near Columbus
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 Columbus.
Prairie View, TX
Bryan, TX
Houston
Houston, TX
Flight Path Map
This map shows the direct air route between Montopolis and South Houston. Straight-line distance: 152.34 mi (245.17 km).
#1 Montopolis
This Travis County community, situated at an elevation of 469 feet, is known for its Colorado River industrial areas.
| Population | 912,791 |
| Coordinates | 30.2432700, -97.6905600 |
| Altitude | 143 |
| Country | United States |
#2 South Houston
City in Harris County, Texas, United States
| Population | 17,446 |
| Coordinates | 29.6630100, -95.2354900 |
| Altitude | 9 |
| Country | United States |
End: South Houston (-95.23549, 29.66301)
Estimated Travel Time
Distance: 273 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 39m |
| 40 mph (64.37 km/h) | 04h 14m |
| 50 mph (80.47 km/h) | 03h 23m |
| 60 mph (96.56 km/h) | 02h 49m |
| 70 mph (112.65 km/h) | 02h 25m |
| 80 mph (129 km/h) | 02h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $22.64 | $45.27 |
| Mid-grade | $4.25 | $25.47 | $50.94 |
| Premium | $4.59 | $27.50 | $55.00 |
| Diesel | $3.99 | $23.92 | $47.84 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.