How far is Duncanville, TX from Laredo, TX?
The driving distance from Duncanville, TX to Laredo, TX is about 441.5 miles (710.6 km), with a travel time of about 06h 20m by car.
- The straight-line flight distance is about 387.9 miles (624.3 km).
- For a round trip, plan for roughly 12h 40m 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 20m.
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.
A city in Hays County, Texas.
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 Duncanville and Laredo.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncanville and Laredo.
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1
Start on the route
8 m · 4 sec
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2
Turn right onto East Center Street
6 m · 5 sec · East Center Street
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3
Turn right onto North Main Street
1.4 km · 2 min · North Main Street
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4
Turn right onto East Interstate 20
29 m · 2 sec · East Interstate 20
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5
Take the ramp slight left toward I 20 East
1469 ft · 36 sec
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6
Merge slight left onto Lyndon B Johnson Freeway
4.6 mi · 5 min · Lyndon B Johnson Freeway
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7
Take the exit slight right toward I 35E South: Waco
2016 ft · 45 sec
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8
Merge slight left onto South R L Thornton Freeway
80.5 mi · 1 hr 22 min · South R L Thornton Freeway
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9
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
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10
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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11
Keep slight left
55.8 mi · 59 min
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12
Keep slight left to continue on Purple Heart Trail
49.8 mi · 55 min · Purple Heart Trail
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13
Continue on Interstate Highway 35
1.7 mi · 2 min · Interstate Highway 35
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14
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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15
Continue on North Pan Am Expressway
10 mi · 12 min · North Pan Am Expressway
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16
Keep slight left to continue on North Pan Am Expressway
6.4 mi · 8 min · North Pan Am Expressway
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17
Keep slight left to continue on North Pan Am Expressway
2.1 mi · 3 min · North Pan Am Expressway
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18
Keep slight right to continue on South Pan Am Expressway
10.4 mi · 12 min · South Pan Am Expressway
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19
Continue on Purple Heart Trail
144.5 mi · 2 hr 26 min · Purple Heart Trail
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20
Turn right onto Houston Street
1607 ft · 42 sec · Houston Street
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21
Turn left onto Salinas Avenue
83 m · 12 sec · Salinas Avenue
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22
Turn left onto Matamoros Street
93 m · 5 sec · Matamoros Street
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23
Arrive at your destination
0 m · 1 sec · Matamoros Street
Car Route Details
A richer read on the saved driving route between Duncanville and Laredo.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Continue on Purple Heart Trail
144 mi · 02h 26m
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 Duncanville 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 Duncanville to Laredo?
The road trip is about 441.5 miles (710.6 km) and usually takes 06h 20m 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?
Kyle is a useful midpoint, sitting about 212.5 miles from Duncanville and 229 miles from Laredo.
How much longer is the road route than the straight-line distance?
The direct path is about 387.9 miles (624.3 km), while the road route adds roughly 53.6 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 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 $58.88 one way or $117.75 round trip. Estimated CO2 is about 138.5 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Duncanville and Partly Sunny near Laredo.
Stop Ideas Near Kyle
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 Kyle.
San Marcos Station
Austin
Taylor
San Antonio Station
Flight Path Map
This map shows the direct air route between Duncanville and Laredo. Straight-line distance: 387.95 mi (624.35 km).
#1 Duncanville
City in Dallas County, Texas, in the United States
| Population | 38,189 |
| Coordinates | 32.6518000, -96.9083400 |
| Altitude | 221 |
| 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: 711 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 42m |
| 40 mph (64.37 km/h) | 11h 02m |
| 50 mph (80.47 km/h) | 08h 49m |
| 60 mph (96.56 km/h) | 07h 21m |
| 70 mph (112.65 km/h) | 06h 18m |
| 80 mph (129 km/h) | 05h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $58.88 | $117.75 |
| Mid-grade | $4.25 | $66.25 | $132.49 |
| Premium | $4.59 | $71.53 | $143.06 |
| Diesel | $3.99 | $62.21 | $124.42 |
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 · May 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.