Your total trip with all stops is around 1,500 miles / 2420 km, taking roughly 22.5 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 MSP and PSC.
Start from Minneapolis-Saint Paul International Airport.
Fargo, North Dakota is stopping point #1 after driving about 250 miles (400 km) or 4 hours.
Mandan, North Dakota is stopping point #2 after driving about 200 miles (320 km) or 3 hours. Your total trip so far is about 450 miles or 720 km over roughly 6.5 hours of driving.
Billings, Montana is stopping point #3 after driving about 410 miles (660 km) or 5.5 hours. Your total trip so far is about 860 miles or 1380 km over roughly 12.5 hours of driving.
Missoula, Montana is stopping point #4 after driving about 350 miles (560 km) or 5 hours. Your total trip so far is about 1,200 miles or 1940 km over roughly 17.5 hours of driving.
Finally, Tri-Cities Airport is your destination after driving about 300 miles (480 km) or 5 hours. Your total trip with all stops is around 1,500 miles or 2420 km, taking roughly 22.5 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.