Your total trip with all stops is around 1,840 miles / 2950 km, taking roughly 27.5 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 BNA and HLN.
Start from Nashville International Airport.
Saint Louis, Missouri is stopping point #1 after driving about 320 miles (510 km) or 5 hours.
Kansas City, Missouri is stopping point #2 after driving about 250 miles (400 km) or 3.5 hours. Your total trip so far is about 560 miles or 910 km over roughly 8.5 hours of driving.
Sioux Falls, South Dakota is stopping point #3 after driving about 360 miles (590 km) or 5.5 hours. Your total trip so far is about 930 miles or 1490 km over roughly 14 hours of driving.
Rapid City, South Dakota is stopping point #4 after driving about 350 miles (560 km) or 5 hours. Your total trip so far is about 1,280 miles or 2060 km over roughly 19 hours of driving.
Billings, Montana is stopping point #5 after driving about 320 miles (510 km) or 5 hours. Your total trip so far is about 1,600 miles or 2570 km over roughly 24 hours of driving.
Finally, Helena Regional Airport is your destination after driving about 240 miles (380 km) or 3.5 hours. Your total trip with all stops is around 1,840 miles or 2950 km, taking roughly 27.5 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.