How far is Port Arthur, TX from Laredo, TX?
The driving distance from Port Arthur, TX to Laredo, TX is about 404 miles (650.2 km), with a travel time of about 06h 25m by car.
- The straight-line flight distance is about 375.1 miles (603.7 km).
- For a round trip, plan for roughly 12h 50m 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 06h 25m.
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.
Showers And Thunderstorms Likely
Partly Sunny
Driving Route Map
The map below follows the saved road route between Port Arthur and Laredo.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Arthur and Laredo.
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1
Start on Augusta Avenue
60 m · 8 sec · Augusta Avenue
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2
Turn right onto Gulfway Drive
1.4 mi · 3 min · Gulfway Drive
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3
Continue on Dowling Road
1821 ft · 35 sec · Dowling Road
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4
Turn right
20.4 mi · 22 min
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5
Continue straight
3.9 mi · 4 min
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6
Turn straight
3.3 mi · 4 min
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7
Merge slight left
234.1 mi · 4 hr 11 min
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8
Keep slight left
12 mi · 13 min
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9
Keep slight left to continue on 90th Infantry Division Highway
1.2 km · 52 sec · 90th Infantry Division Highway
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10
Continue on Jose Lopez Freeway
8 mi · 9 min · Jose Lopez Freeway
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11
Take the exit slight right toward I 35, I 10 West, US 87 North: Laredo, El Paso, Austin
923 ft · 23 sec
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12
Keep slight left to continue on I 35 South: Laredo
2518 ft · 1 min
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13
Merge slight left onto South Pan Am Expressway
8.3 mi · 10 min · South Pan Am Expressway
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14
Continue on Purple Heart Trail
144.5 mi · 2 hr 26 min · Purple Heart Trail
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15
Turn right onto Houston Street
1607 ft · 42 sec · Houston Street
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16
Turn left onto Salinas Avenue
83 m · 12 sec · Salinas Avenue
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17
Turn left onto Matamoros Street
93 m · 5 sec · Matamoros Street
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18
Arrive at your destination
0 m · 1 sec · Matamoros Street
Car Route Details
A richer read on the saved driving route between Port Arthur and Laredo.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Dowling Road
Merge slight left
234 mi · 04h 11m
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.
Showers And Thunderstorms Likely leaving Port Arthur and Partly Sunny near Laredo.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Arthur to Laredo?
The road trip is about 404 miles (650.2 km) and usually takes 06h 25m 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 miles from Port Arthur and 184.9 miles from Laredo.
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 28.9 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 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 $53.85 one way or $107.70 round trip. Estimated CO2 is about 126.6 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Port Arthur and Partly Sunny near Laredo.
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 Port Arthur and Laredo. Straight-line distance: 375.14 mi (603.73 km).
#1 Port Arthur
The most populous city in Jefferson County, Texas.
| Population | 53,921 |
| Coordinates | 29.8851900, -93.9423300 |
| Altitude | 2 |
| Country | United States |
#2 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 |
End: Matamoros Street (-99.507507, 27.506385)
Estimated Travel Time
Distance: 650 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 27m |
| 40 mph (64.37 km/h) | 10h 06m |
| 50 mph (80.47 km/h) | 08h 04m |
| 60 mph (96.56 km/h) | 06h 43m |
| 70 mph (112.65 km/h) | 05h 46m |
| 80 mph (129 km/h) | 05h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $53.85 | $107.70 |
| Mid-grade | $4.25 | $60.59 | $121.18 |
| Premium | $4.59 | $65.42 | $130.84 |
| Diesel | $3.99 | $56.90 | $113.80 |
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.