Your total trip with all stops is around 1,920 miles / 3080 km, taking roughly 28 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 Spring, TX and Missoula, MT.
Start from Spring, Texas.
Dallas, Texas is stopping point #1 after driving about 220 miles (350 km) or 3 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 580 miles or 940 km over roughly 8.5 hours of driving.
Denver, Colorado is stopping point #3 after driving about 430 miles (700 km) or 6.5 hours. Your total trip so far is about 1,020 miles or 1640 km over roughly 15 hours of driving.
Casper, Wyoming is stopping point #4 after driving about 280 miles (450 km) or 4 hours. Your total trip so far is about 1,290 miles or 2080 km over roughly 19 hours of driving.
Billings, Montana is stopping point #5 after driving about 280 miles (450 km) or 4 hours. Your total trip so far is about 1,570 miles or 2530 km over roughly 23 hours of driving.
Finally, Missoula, Montana is your destination after driving about 350 miles (560 km) or 5 hours. Your total trip with all stops is around 1,920 miles or 3080 km, taking roughly 28 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.