Your total trip with all stops is around 1,450 miles / 2340 km, taking roughly 21.5 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 IAH and LAS.
Start from George Bush Intercontinental Airport.
Dallas, Texas is stopping point #1 after driving about 230 miles (370 km) or 3.5 hours.
Amarillo, Texas is stopping point #2 after driving about 360 miles (590 km) or 5.5 hours. Your total trip so far is about 600 miles or 960 km over roughly 9 hours of driving.
Albuquerque, New Mexico is stopping point #3 after driving about 290 miles (460 km) or 4.5 hours. Your total trip so far is about 880 miles or 1420 km over roughly 13 hours of driving.
Flagstaff, Arizona is stopping point #4 after driving about 320 miles (520 km) or 4.5 hours. Your total trip so far is about 1,210 miles or 1940 km over roughly 18 hours of driving.
Finally, Harry Reid International Airport is your destination after driving about 250 miles (400 km) or 4 hours. Your total trip with all stops is around 1,450 miles or 2340 km, taking roughly 21.5 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.