Your total trip with all stops is around 1,540 miles / 2470 km, taking roughly 24 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 Sioux Falls, SD and Mount Vernon, WA.
Start from Sioux Falls, South Dakota.
Rapid City, South Dakota is stopping point #1 after driving about 350 miles (560 km) or 5 hours.
Billings, Montana is stopping point #2 after driving about 320 miles (510 km) or 5 hours. Your total trip so far is about 670 miles or 1080 km over roughly 10 hours of driving.
Missoula, Montana is stopping point #3 after driving about 350 miles (560 km) or 5 hours. Your total trip so far is about 1,010 miles or 1630 km over roughly 15 hours of driving.
Wenatchee, Washington is stopping point #4 after driving about 370 miles (590 km) or 6 hours. Your total trip so far is about 1,380 miles or 2220 km over roughly 21 hours of driving.
Finally, Mount Vernon, Washington is your destination after driving about 160 miles (250 km) or 3 hours. Your total trip with all stops is around 1,540 miles or 2470 km, taking roughly 24 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.