How far is Austin, TX from Port O'Connor, TX?
The driving distance from Austin, TX to Port O'Connor, TX is about 171.9 miles (276.6 km), with a travel time of about 03h 38m by car.
- The straight-line flight distance is about 149.3 miles (240.2 km).
- For a round trip, plan for roughly 07h 17m 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 38m.
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.
Mostly Cloudy
Haze then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Austin and Port O'Connor.
Turn-by-Turn Driving Directions
Step-by-step road directions between Austin and Port O'Connor.
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1
Start on East 5th Street
1836 ft · 52 sec · East 5th Street
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2
Turn left onto Red River Street
711 ft · 20 sec · Red River Street
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3
Turn right onto East 7th Street
3 mi · 5 min · East 7th Street
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4
Turn straight onto Airport Boulevard
1279 ft · 20 sec · Airport Boulevard
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5
Continue on Ed Bluestein Boulevard
552 ft · 9 sec · Ed Bluestein Boulevard
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6
Take the ramp straight toward 183 Toll South: Lockhart
705 ft · 17 sec
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7
Merge slight left onto Bergstrom Expressway
1.3 km · 47 sec · Bergstrom Expressway
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8
Continue on Bastrop Highway
11.7 mi · 15 min · Bastrop Highway
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9
Take the ramp straight toward TX 130 Toll South: Lockhart, San Antonio
1565 ft · 38 sec
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10
Merge slight left onto Pickle Parkway
9.8 mi · 9 min · Pickle Parkway
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11
Take the exit slight right toward US 183 South: Lockhart
1219 ft · 30 sec
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12
Continue on United States Highway 183
2699 ft · 35 sec · United States Highway 183
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13
Continue on North Colorado Street
4.9 mi · 9 min · North Colorado Street
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14
Continue on US 183
10.1 mi · 12 min · US 183
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15
Continue on North Magnolia Avenue
1.2 mi · 2 min · North Magnolia Avenue
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16
Turn left onto East Pierce Street
5 mi · 7 min · East Pierce Street
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17
Continue on North United States Highway 183
43.5 mi · 47 min · North United States Highway 183
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18
Continue on North Esplanade Street
1.6 mi · 2 min · North Esplanade Street
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19
Turn left onto East Broadway Street
23.8 mi · 27 min · East Broadway Street
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20
Continue on North Main Street
3.9 mi · 6 min · North Main Street
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21
Turn left onto East Rio Grande Street
1331 ft · 26 sec · East Rio Grande Street
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22
Turn right onto North Navarro Street
2462 ft · 51 sec · North Navarro Street
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23
Turn left onto East Goodwin Avenue
1798 ft · 31 sec · East Goodwin Avenue
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24
Continue on Port Lavaca Drive
21.3 mi · 25 min · Port Lavaca Drive
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25
Keep slight left
4.1 mi · 5 min
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26
Turn right onto Alcoa Drive
1.3 km · 2 min · Alcoa Drive
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27
Turn right onto West Austin Street
3.1 mi · 5 min · West Austin Street
-
28
Continue straight
1.5 km · 2 min
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29
Turn left
11.2 mi · 20 min
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30
At the end of the road, turn left onto State Highway 185 East
6.9 mi · 12 min · State Highway 185 East
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31
Continue on Adams Avenue
1.5 km · 2 min · Adams Avenue
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32
Turn right onto 2nd Street
28 m · 3 sec · 2nd Street
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33
Arrive at your destination
0 m · 1 sec · 2nd Street
Car Route Details
A richer read on the saved driving route between Austin and Port O'Connor.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
North United States Highway 183
Continue on North United States Highway 183
43.5 mi · 00h 47m
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 Austin and Haze then Mostly Sunny near Port O'Connor.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Austin to Port O'Connor?
The road trip is about 171.9 miles (276.6 km) and usually takes 03h 38m 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 86.1 miles from Austin and 85.8 miles from Port O'Connor.
How much longer is the road route than the straight-line distance?
The direct path is about 149.3 miles (240.2 km), while the road route adds roughly 22.6 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 9:42 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.94 one way or $45.88 round trip. Estimated CO2 is about 53.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Austin and Haze then Mostly Sunny near Port O'Connor.
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 Austin and Port O'Connor. Straight-line distance: 149.25 mi (240.2 km).
#1 Austin
The eleventh most populous city in the United States and the center of the Austin metropolitan area.
| Population | 995,484 |
| Coordinates | 30.2671500, -97.7430600 |
| Altitude | 149 |
| Country | United States |
#2 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 |
End: Port O'Connor (-96.40581, 28.44834)
Estimated Travel Time
Distance: 277 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 43m |
| 40 mph (64.37 km/h) | 04h 17m |
| 50 mph (80.47 km/h) | 03h 26m |
| 60 mph (96.56 km/h) | 02h 51m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $22.94 | $45.88 |
| Mid-grade | $4.25 | $25.81 | $51.62 |
| Premium | $4.59 | $27.87 | $55.73 |
| Diesel | $3.99 | $24.24 | $48.48 |
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.