How far is Allen, TX from Houston, TX?
Fastest route
The route from Allen, Texas, USA to Houston, Texas, USA is approximately 266 miles long and takes approximately 3 hours and 52 minutes via I-45 S. This route includes tolls and is currently the fastest route, avoiding road closures on I-45 S.
Directions
- Head west on W Main St toward Butler Dr.
- Turn left at the 2nd cross street onto S Allen Dr.
- Use any lane to turn right onto W McDermott Dr.
- Pass by Express Employment Professionals (on the right) and turn left onto S Central Expy/Central Service S.
- Use the left lane to take the ramp onto US-75 S.
- Continue on US-75 S, I-45 S, and Hardy Toll Rd.
- Take exit 47C from I-45 S for Bagby St in Houston.
Tips & Suggestions
- 🛣️ Follow the signs for US-75 S and then I-45 S to reach Houston.
- 🚧 Check for road closures or traffic updates before starting your journey.
- 💰 Be prepared for tolls along the route.
- 📱 Use navigation apps or GPS devices to stay on track.
- ⛽ Plan for necessary refueling stops along the way.
- 🚗 Keep an eye on the traffic conditions and adjust your speed accordingly.
- 🕒 Consider the estimated travel time to plan for any necessary breaks or rest stops.
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 55m.
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 Leon County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Allen and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Allen and Houston.
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1
Start on West Main Street
137 m · 16 sec · West Main Street
-
2
Turn left onto South Allen Drive
527 ft · 15 sec · South Allen Drive
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3
Turn right onto West McDermott Drive
2032 ft · 1 min · West McDermott Drive
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4
Turn left onto South Central Expressway
2240 ft · 40 sec · South Central Expressway
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5
Take the ramp slight left toward US 75 South
1131 ft · 28 sec
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6
Merge slight left onto Central Expressway
22.3 mi · 24 min · Central Expressway
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7
Continue on Julius Schepps Freeway
3.4 mi · 4 min · Julius Schepps Freeway
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8
Keep slight left to continue on Julius Schepps Freeway
234.2 mi · 4 hr 6 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 Allen 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
Keep slight left to continue on Julius Schepps Freeway
234 mi · 04h 06m
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.
Slight Chance Showers And Thunderstorms leaving Allen and Chance Showers And Thunderstorms then 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 Allen to Houston?
The road trip is about 265.6 miles (427.4 km) and usually takes 03h 55m 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?
Buffalo is a useful midpoint, sitting about 131.4 miles from Allen and 134.2 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 243.3 miles (391.5 km), while the road route adds roughly 22.3 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 9:08 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.41 one way or $70.82 round trip. Estimated CO2 is about 83.3 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around Allen and Chance Showers And Thunderstorms then Showers And Thunderstorms near Houston.
Stop Ideas Near Buffalo
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 Buffalo.
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Flight Path Map
This map shows the direct air route between Allen and Houston. Straight-line distance: 243.29 mi (391.53 km).
#1 Allen
The fifth most populous city in Collin County, Texas.
| Population | 109,379 |
| Coordinates | 33.1031700, -96.6705500 |
| Altitude | 201 |
| 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: 427 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 50m |
| 40 mph (64.37 km/h) | 06h 38m |
| 50 mph (80.47 km/h) | 05h 18m |
| 60 mph (96.56 km/h) | 04h 25m |
| 70 mph (112.65 km/h) | 03h 47m |
| 80 mph (129 km/h) | 03h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $35.41 | $70.82 |
| Mid-grade | $4.25 | $39.84 | $79.68 |
| Premium | $4.59 | $43.02 | $86.04 |
| Diesel | $3.99 | $37.41 | $74.83 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.