How far is Southmayd, TX from Houston, TX?
The driving distance from Southmayd, TX to Houston, TX is about 310.8 miles (500.2 km), with a travel time of about 04h 52m by car.
- The straight-line flight distance is about 279.7 miles (450.1 km).
- For a round trip, plan for roughly 09h 44m 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 04h 52m.
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 and county seat of Freestone County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Southmayd and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Southmayd and Houston.
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1
Start on Belknap Road
118 m · 19 sec · Belknap Road
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2
Turn left onto McElroy Street
1497 ft · 1 min · McElroy Street
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3
Turn left onto State Highway 56
6.3 mi · 7 min · State Highway 56
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4
Continue on West Houston Street
1.8 mi · 3 min · West Houston Street
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5
Continue on West Lamar Street
1.5 km · 1 min · West Lamar Street
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6
Turn right onto South Sam Rayburn Freeway
757 ft · 21 sec · South Sam Rayburn Freeway
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7
Take the ramp slight left
1240 ft · 30 sec
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8
Merge slight left onto South Sam Rayburn Freeway
6.4 mi · 7 min · South Sam Rayburn Freeway
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9
Continue on North Collins Freeway
10.1 mi · 10 min · North Collins Freeway
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10
Continue on North Central Expressway
44.9 mi · 48 min · North Central Expressway
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11
Continue on Julius Schepps Freeway
3.4 mi · 4 min · Julius Schepps Freeway
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12
Keep slight left to continue on Julius Schepps Freeway
234.2 mi · 4 hr 6 min · Julius Schepps Freeway
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13
Continue on Gulf Freeway
83 m · 4 sec · Gulf Freeway
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14
Take the exit slight left toward I 10 East: Beaumont
2168 ft · 53 sec
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15
Keep slight left to continue on Milam Street
1614 ft · 39 sec
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16
Continue on Milam Street
2031 ft · 1 min · Milam Street
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17
Turn right onto Prairie Street
100 m · 14 sec · Prairie Street
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18
Turn right onto Louisiana Street
157 m · 17 sec · Louisiana Street
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19
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Southmayd and Houston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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.
Patchy Fog leaving Southmayd 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 Southmayd to Houston?
The road trip is about 310.8 miles (500.2 km) and usually takes 04h 52m 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?
Fairfield is a useful midpoint, sitting about 155.3 miles from Southmayd and 155.5 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 279.7 miles (450.1 km), while the road route adds roughly 31.1 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 7:16 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.46 one way or $82.91 round trip. Estimated CO2 is about 97.5 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog around Southmayd and Chance Showers And Thunderstorms then Showers And Thunderstorms near Houston.
Stop Ideas Near Fairfield
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 Fairfield.
Waco, TX
Tyler, TX
Bryan, TX
Flight Path Map
This map shows the direct air route between Southmayd and Houston. Straight-line distance: 279.67 mi (450.09 km).
#1 Southmayd
City in Grayson County, Texas, United States
| Population | 1,176 |
| Coordinates | 33.6303800, -96.7691600 |
| Altitude | 224 |
| 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: 500 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 21m |
| 40 mph (64.37 km/h) | 07h 46m |
| 50 mph (80.47 km/h) | 06h 12m |
| 60 mph (96.56 km/h) | 05h 10m |
| 70 mph (112.65 km/h) | 04h 26m |
| 80 mph (129 km/h) | 03h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $41.46 | $82.91 |
| Mid-grade | $4.25 | $46.64 | $93.29 |
| Premium | $4.59 | $50.36 | $100.73 |
| Diesel | $3.99 | $43.80 | $87.61 |
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.