How far is Laredo, TX from Port Arthur, TX?
The driving distance from Laredo, TX to Port Arthur, TX is about 438.3 miles (705.4 km), with a travel time of about 07h 46m by car.
- The straight-line flight distance is about 375.1 miles (603.7 km).
- For a round trip, plan for roughly 15h 33m 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 07h 46m.
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.
City in Guadalupe County, Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Laredo and Port Arthur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Laredo and Port Arthur.
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1
Start on Matamoros Street
1544 ft · 46 sec · Matamoros Street
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2
Turn left onto San Dario Avenue
553 ft · 11 sec · San Dario Avenue
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3
Continue on Purple Heart Trail
144.4 mi · 2 hr 27 min · Purple Heart Trail
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4
Continue on South Pan Am Expressway
8.4 mi · 10 min · South Pan Am Expressway
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5
Take the exit slight right toward I 10 East, US 90 West, US 90 East, US 87 South: Houston, Del Rio
616 ft · 15 sec
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6
Keep slight right to continue on I 10 East, US 90 East, US 87 South: Houston
2146 ft · 52 sec
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7
Merge slight left onto Jose Lopez Freeway
8 mi · 9 min · Jose Lopez Freeway
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8
Continue on 90th Infantry Division Highway
22.2 mi · 23 min · 90th Infantry Division Highway
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9
Continue on I 10 East: Houston, Austin, Waco
151.1 mi · 2 hr 34 min
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10
Take the exit slight left toward I 10 Toll: Katy Tollway
1548 ft · 22 sec
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11
Merge slight left onto Katy Tollway
3.2 mi · 4 min · Katy Tollway
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12
Take the exit slight right
1092 ft · 15 sec
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13
Merge slight right onto Katy Freeway
10.9 mi · 14 min · Katy Freeway
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14
Continue on East Freeway
5.8 mi · 7 min · East Freeway
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15
Keep slight left to continue on East Freeway
13.4 mi · 16 min · East Freeway
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16
Keep slight left to continue on East Freeway
40 mi · 46 min · East Freeway
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17
Take the exit slight right toward TX 73, TX 124: Winnie, Port Arthur
2059 ft · 27 sec
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18
Keep slight left
24.5 mi · 26 min
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19
Take the exit slight right toward TX 73 East: Port Arthur, Groves
2.4 mi · 3 min
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20
Take the exit slight right toward Spur 215
597 ft · 15 sec
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21
Keep slight right to continue on Spur 215
60 m · 6 sec
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22
Turn straight onto Savannah Avenue
2 mi · 3 min · Savannah Avenue
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23
Turn right onto 17th Street
113 m · 16 sec · 17th Street
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24
Turn left onto Augusta Avenue
49 m · 5 sec · Augusta Avenue
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25
Arrive at your destination
0 m · 1 sec · Augusta Avenue
Car Route Details
A richer read on the saved driving route between Laredo and Port Arthur.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 10 East
Continue on I 10 East: Houston, Austin, Waco
151 mi · 02h 34m
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 Laredo and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Port Arthur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Laredo to Port Arthur?
The road trip is about 438.3 miles (705.4 km) and usually takes 07h 46m 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?
Luling is a useful midpoint, sitting about 219.1 miles from Laredo and 219.2 miles from Port Arthur.
How much longer is the road route than the straight-line distance?
The direct path is about 375.1 miles (603.7 km), while the road route adds roughly 63.2 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 $58.46 one way or $116.92 round trip. Estimated CO2 is about 137.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Laredo and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Port Arthur.
Stop Ideas Near Luling
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 Luling.
San Marcos Station
Austin
San Antonio Station
Taylor
Flight Path Map
This map shows the direct air route between Laredo and Port Arthur. Straight-line distance: 375.14 mi (603.73 km).
#1 Laredo
The third most populous city in Texas and the center of the Laredo metropolitan area.
| Population | 263,640 |
| Coordinates | 27.5064100, -99.5075400 |
| Altitude | 126 |
| Country | United States |
#2 Port Arthur
The most populous city in Jefferson County, Texas.
| Population | 53,921 |
| Coordinates | 29.8851900, -93.9423300 |
| Altitude | 2 |
| Country | United States |
End: Port Arthur (-93.94233, 29.88519)
Estimated Travel Time
Distance: 705 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 36m |
| 40 mph (64.37 km/h) | 10h 57m |
| 50 mph (80.47 km/h) | 08h 45m |
| 60 mph (96.56 km/h) | 07h 18m |
| 70 mph (112.65 km/h) | 06h 15m |
| 80 mph (129 km/h) | 05h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $58.46 | $116.92 |
| Mid-grade | $4.25 | $65.78 | $131.56 |
| Premium | $4.59 | $71.02 | $142.05 |
| Diesel | $3.99 | $61.77 | $123.54 |
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.