How far is Montopolis, TX from San Augustine, TX?
The driving distance from Montopolis, TX to San Augustine, TX is about 263.2 miles (423.6 km), with a travel time of about 05h 06m by car.
- The straight-line flight distance is about 230.3 miles (370.7 km).
- For a round trip, plan for roughly 10h 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 05h 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 Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Montopolis and San Augustine.
Turn-by-Turn Driving Directions
Step-by-step road directions between Montopolis and San Augustine.
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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
18.9 mi · 22 min · Texas State Highway 71
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9
Take the exit slight right
1067 ft · 26 sec
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10
Turn straight onto College Street
1.4 km · 2 min · College Street
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11
Turn left onto State Highway 95
1945 ft · 35 sec · State Highway 95
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12
Turn right onto Chestnut Street
1.3 km · 1 min · Chestnut Street
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13
Continue on State Highway 21 East
65.2 mi · 1 hr 12 min · State Highway 21 East
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14
Keep slight left
79.2 mi · 1 hr 31 min
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15
At the end of the road, turn right
33 mi · 37 min
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16
Continue straight
11.6 mi · 12 min
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17
Continue on North Raguet Street
2 mi · 3 min · North Raguet Street
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18
Turn left onto Abney Avenue
1.1 km · 2 min · Abney Avenue
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19
Continue on Abney Avenue
145 m · 13 sec · Abney Avenue
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20
Continue on East Laurel Avenue
701 ft · 14 sec · East Laurel Avenue
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21
Continue on Atkinson Drive
3.6 mi · 5 min · Atkinson Drive
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22
Continue straight
28.7 mi · 30 min
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23
Turn slight left
1.9 mi · 3 min
-
24
Keep slight left
9.2 mi · 16 min
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25
Turn right onto West Main Street
1530 ft · 31 sec · West Main Street
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26
Turn left onto South Liberty Street
114 m · 12 sec · South Liberty Street
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27
Turn right onto Columbia Street
88 m · 8 sec · Columbia Street
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28
Arrive at your destination
0 m · 1 sec · Columbia Street
Car Route Details
A richer read on the saved driving route between Montopolis and San Augustine.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
State Highway 21 East
Keep slight left
79.2 mi · 01h 31m
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.
Mostly Cloudy leaving Montopolis and Mostly Cloudy then Chance Showers And Thunderstorms near San Augustine.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Montopolis to San Augustine?
The road trip is about 263.2 miles (423.6 km) and usually takes 05h 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?
Madisonville is a useful midpoint, sitting about 131.5 miles from Montopolis and 131.7 miles from San Augustine.
How much longer is the road route than the straight-line distance?
The direct path is about 230.3 miles (370.7 km), while the road route adds roughly 32.9 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 6:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.11 one way or $70.21 round trip. Estimated CO2 is about 82.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Montopolis and Mostly Cloudy then Chance Showers And Thunderstorms near San Augustine.
Stop Ideas Near Madisonville
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 Madisonville.
Bryan, TX
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Flight Path Map
This map shows the direct air route between Montopolis and San Augustine. Straight-line distance: 230.37 mi (370.74 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 San Augustine
Town of the United States
| Population | 1,865 |
| Coordinates | 31.5299000, -94.1060300 |
| Altitude | 113 |
| Country | United States |
End: San Augustine (-94.10603, 31.5299)
Estimated Travel Time
Distance: 424 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 46m |
| 40 mph (64.37 km/h) | 06h 34m |
| 50 mph (80.47 km/h) | 05h 15m |
| 60 mph (96.56 km/h) | 04h 23m |
| 70 mph (112.65 km/h) | 03h 45m |
| 80 mph (129 km/h) | 03h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $35.11 | $70.21 |
| Mid-grade | $4.25 | $39.50 | $79.00 |
| Premium | $4.59 | $42.65 | $85.30 |
| Diesel | $3.99 | $37.09 | $74.19 |
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.