DriveWindow route answer
How long is the drive from Dallas to Houston, and how far is it?
The drive from Dallas to Houston is typically 4 hours and 240 miles via I-45 through east Texas. Allow extra time because severe thunderstorm timing or heavy rain can affect the corridor.
Route facts
Dallas → Houston
- Distance
- 240 miles
- Typical drive
- 4 hours
- Planning baseline
- Morning or after storms pass
- Main weather risks
- severe thunderstorm timing · heavy rain · gusty wind and hail risk
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Time and distance
Drive-time baseline and possible delays
- Distance
- 240 miles
- Typical drive
- 4 hours
- Weather-sensitive corridor
- I-45 through east Texas
The usual planning baseline is 4 hours for 240 miles via I-45 through east Texas. It does not include fuel, charging, food, border, park-entry, or weather-related stops.
Allow extra time if the forecast includes severe thunderstorm timing or heavy rain; conditions may affect your pace or require stops.
What to check before leaving
Storm lines can move across the corridor and change the best drive window. Key weather factors: severe thunderstorm timing, heavy rain, gusty wind and hail risk.
- severe thunderstorm timing
- heavy rain
- gusty wind and hail risk
Route planning answers
Common questions about this drive
Plan the drive
Route weather planning guides
Start with the question that matches your trip, then finish the current check in DriveWindow.
Sources and methodology
How this answer is produced
Website drive time and distance are static planning baselines. In the app, routing-provider travel time can account for traffic and helps time each weather segment; departure options are then compared by weather risk for your date.
US National Weather Service Environment and Climate Change Canada DriveTexas Route weather methodology Data-source policy
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