Your total trip with all stops is around 920 miles / 1480 km, taking roughly 14.5 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 UST and DAY.
Start from St Augustine.
Savannah, Georgia is stopping point #1 after driving about 180 miles (280 km) or 3 hours.
Asheville, North Carolina is stopping point #2 after driving about 310 miles (500 km) or 4.5 hours. Your total trip so far is about 490 miles or 780 km over roughly 7.5 hours of driving.
Lexington-Fayette, Kentucky is stopping point #3 after driving about 280 miles (460 km) or 4.5 hours. Your total trip so far is about 770 miles or 1240 km over roughly 12 hours of driving.
Finally, James M. Cox Dayton International Airport is your destination after driving about 150 miles (240 km) or 2.5 hours. Your total trip with all stops is around 920 miles or 1480 km, taking roughly 14.5 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.