How far is Duncanville, TX from Houston, TX?
The driving distance from Duncanville, TX to Houston, TX is about 243.6 miles (392 km), with a travel time of about 03h 33m by car.
- The straight-line flight distance is about 219.5 miles (353.2 km).
- For a round trip, plan for roughly 07h 06m 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 33m.
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.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Duncanville and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncanville and Houston.
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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
10.5 mi · 11 min · Lyndon B Johnson Freeway
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7
Take the exit slight right toward I 45 South: Houston
1607 ft · 34 sec
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8
Merge slight left onto Julius Schepps Freeway
227.2 mi · 3 hr 58 min · Julius Schepps Freeway
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9
Continue on Gulf Freeway
83 m · 4 sec · Gulf Freeway
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10
Take the exit slight left toward I 10 East: Beaumont
2168 ft · 53 sec
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11
Keep slight left to continue on Milam Street
1614 ft · 39 sec
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12
Continue on Milam Street
2031 ft · 1 min · Milam Street
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13
Turn right onto Prairie Street
100 m · 14 sec · Prairie Street
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14
Turn right onto Louisiana Street
157 m · 17 sec · Louisiana Street
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15
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Duncanville and Houston.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Julius Schepps Freeway
Merge slight left onto Julius Schepps Freeway
227 mi · 03h 58m
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.
Showers And Thunderstorms Likely leaving Duncanville and Chance Showers And Thunderstorms near Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Duncanville to Houston?
The road trip is about 243.6 miles (392 km) and usually takes 03h 33m 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?
Jewett is a useful midpoint, sitting about 120.4 miles from Duncanville and 123.2 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 219.5 miles (353.2 km), while the road route adds roughly 24.1 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 9:54 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.50 one way or $65.00 round trip. Estimated CO2 is about 76.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Duncanville and Chance Showers And Thunderstorms near Houston.
Stop Ideas Near Jewett
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 Jewett.
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Flight Path Map
This map shows the direct air route between Duncanville and Houston. Straight-line distance: 219.46 mi (353.19 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 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
End: Louisiana Street (-95.363596, 29.76347)
Estimated Travel Time
Distance: 392 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 06m |
| 40 mph (64.37 km/h) | 06h 05m |
| 50 mph (80.47 km/h) | 04h 52m |
| 60 mph (96.56 km/h) | 04h 03m |
| 70 mph (112.65 km/h) | 03h 28m |
| 80 mph (129 km/h) | 03h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $32.50 | $65.00 |
| Mid-grade | $4.25 | $36.57 | $73.13 |
| Premium | $4.59 | $39.48 | $78.97 |
| Diesel | $3.99 | $34.34 | $68.68 |
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.