Your total trip with all stops is around 1,560 miles / 2520 km, taking roughly 25 hours for the whole trip. If you want to see every small town along the way, you can get a full list of cities between PHL and IAH.
Start from Philadelphia International Airport.
Roanoke, Virginia is stopping point #1 after driving about 370 miles (590 km) or 6.5 hours.
Knoxville, Tennessee is stopping point #2 after driving about 260 miles (420 km) or 4 hours. Your total trip so far is about 630 miles or 1010 km over roughly 10.5 hours of driving.
Birmingham, Alabama is stopping point #3 after driving about 260 miles (410 km) or 4 hours. Your total trip so far is about 880 miles or 1420 km over roughly 14.5 hours of driving.
Baton Rouge, Louisiana is stopping point #4 after driving about 400 miles (640 km) or 6 hours. Your total trip so far is about 1,280 miles or 2060 km over roughly 20.5 hours of driving.
Finally, George Bush Intercontinental Airport is your destination after driving about 280 miles (450 km) or 4.5 hours. Your total trip with all stops is around 1,560 miles or 2520 km, taking roughly 25 hours for the whole trip.
Travelmath helps you figure out where to stop when planning a long road trip from one location to another. The best stopping point for an overnight hotel stay or a break from driving often depends on how far or how long you want to drive before pausing to rest. You can find the closest city to your stopping point to look for hotels, or explore other cities and towns along the route. Use this as a road trip planner when you're driving cross-country or mapping a route with multiple stops.