How far is Port O'Connor, TX from Montopolis, TX?
The driving distance from Port O'Connor, TX to Montopolis, TX is about 167.8 miles (270 km), with a travel time of about 03h 09m by car.
- The straight-line flight distance is about 146.1 miles (235.2 km).
- For a round trip, plan for roughly 06h 18m 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 09m.
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, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Haze then Mostly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Port O'Connor and Montopolis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port O'Connor and Montopolis.
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1
Start on 2nd Street
28 m · 8 sec · 2nd Street
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2
Turn left onto Adams Avenue
1.5 km · 2 min · Adams Avenue
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3
Continue on State Highway 185 East
6.9 mi · 12 min · State Highway 185 East
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4
Turn right
11.2 mi · 20 min
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5
Turn right onto State Highway 238
1.4 km · 2 min · State Highway 238
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6
At the end of the road, turn left
3.2 mi · 6 min
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7
Turn left onto Alcoa Drive
1.3 km · 2 min · Alcoa Drive
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8
At the end of the road, turn left
4.9 mi · 6 min
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9
Turn straight
20.9 mi · 25 min
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10
Turn right onto North Navarro Street
2462 ft · 51 sec · North Navarro Street
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11
Turn left onto East Rio Grande Street
1163 ft · 20 sec · East Rio Grande Street
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12
Turn right onto North Main Street
3.9 mi · 6 min · North Main Street
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13
Continue on US Highway 87 North
22.1 mi · 25 min · US Highway 87 North
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14
Continue on East Broadway Street
1.7 mi · 2 min · East Broadway Street
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15
Turn right onto North Esplanade Street
1.6 mi · 2 min · North Esplanade Street
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16
Continue on North US Highway 183
22.7 mi · 25 min · North US Highway 183
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17
Continue straight
6 mi · 6 min
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18
Continue straight
19.8 mi · 23 min
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19
Turn right onto South Magnolia Avenue
1.2 mi · 2 min · South Magnolia Avenue
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20
Continue on US 183
10.1 mi · 12 min · US 183
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21
Continue on South Colorado Street
4.9 mi · 9 min · South Colorado Street
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22
Continue on United States Highway 183
1282 ft · 17 sec · United States Highway 183
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23
Keep slight left to continue on TX 130 Toll North: Austin, Waco
2447 ft · 35 sec
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24
Merge slight left onto Pickle Parkway
9.8 mi · 9 min · Pickle Parkway
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25
Take the exit slight right toward US 183 North: Austin
1920 ft · 47 sec
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26
Continue on US Highway 183 South
11.8 mi · 15 min · US Highway 183 South
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27
Continue on Bergstrom Expressway
1.1 km · 41 sec · Bergstrom Expressway
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28
Take the exit slight right toward Loop 111: Cesar Chavez Street, 5th Street, 6th Street, 7th Street, Airport Boulevard
2724 ft · 54 sec
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29
Keep slight right to continue on Airport Boulevard
1278 ft · 34 sec · Airport Boulevard
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30
Continue on Airport Boulevard
2658 ft · 43 sec · Airport Boulevard
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31
Continue on Ed Bluestein Boulevard
552 ft · 9 sec · Ed Bluestein Boulevard
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32
Take the ramp straight toward 183 Toll South: Lockhart
148 m · 12 sec
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33
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Port O'Connor and Montopolis.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North US Highway 183
Continue on North US Highway 183
22.7 mi · 00h 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.
Haze then Mostly Sunny leaving Port O'Connor and Mostly Cloudy near Montopolis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port O'Connor to Montopolis?
The road trip is about 167.8 miles (270 km) and usually takes 03h 09m 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?
Cuero is a useful midpoint, sitting about 84.8 miles from Port O'Connor and 83 miles from Montopolis.
How much longer is the road route than the straight-line distance?
The direct path is about 146.1 miles (235.2 km), while the road route adds roughly 21.7 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 10:42 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.37 one way or $44.74 round trip. Estimated CO2 is about 52.6 kg one way.
What should you check before leaving?
Before you leave, expect Haze then Mostly Sunny around Port O'Connor and Mostly Cloudy near Montopolis.
Stop Ideas Near Cuero
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 Cuero.
San Marcos Station
Flight Path Map
This map shows the direct air route between Port O'Connor and Montopolis. Straight-line distance: 146.17 mi (235.24 km).
#1 Port O'Connor
Port O'Connor is a place in Texas, United States.
| Population | 0 |
| Coordinates | 28.4483400, -96.4058100 |
| Altitude | 1 |
| Country | United States |
#2 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 |
End: 183 Toll (-97.690637, 30.243248)
Estimated Travel Time
Distance: 270 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 35m |
| 40 mph (64.37 km/h) | 04h 11m |
| 50 mph (80.47 km/h) | 03h 21m |
| 60 mph (96.56 km/h) | 02h 47m |
| 70 mph (112.65 km/h) | 02h 23m |
| 80 mph (129 km/h) | 02h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $22.37 | $44.74 |
| Mid-grade | $4.25 | $25.17 | $50.34 |
| Premium | $4.59 | $27.18 | $54.36 |
| Diesel | $3.99 | $23.64 | $47.28 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.