Your total trip with all stops is around 1,470 miles / 2360 km, taking roughly 22 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 PHX and STL.
Start from Phoenix Sky Harbor International Airport.
Albuquerque, New Mexico is stopping point #1 after driving about 410 miles (670 km) or 6.5 hours.
Amarillo, Texas is stopping point #2 after driving about 290 miles (470 km) or 4 hours. Your total trip so far is about 700 miles or 1130 km over roughly 10.5 hours of driving.
Oklahoma City, Oklahoma is stopping point #3 after driving about 260 miles (420 km) or 4 hours. Your total trip so far is about 960 miles or 1550 km over roughly 14.5 hours of driving.
Finally, Lambert-St. Louis International Airport is your destination after driving about 500 miles (810 km) or 7.5 hours. Your total trip with all stops is around 1,470 miles or 2360 km, taking roughly 22 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.