Your total trip with all stops is around 1,400 miles / 2260 km, taking roughly 21.5 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 MKE and IDA.
Start from General Mitchell International Airport.
Rochester, Minnesota is stopping point #1 after driving about 280 miles (460 km) or 4 hours.
Sioux Falls, South Dakota is stopping point #2 after driving about 240 miles (380 km) or 3.5 hours. Your total trip so far is about 520 miles or 840 km over roughly 7.5 hours of driving.
Rapid City, South Dakota is stopping point #3 after driving about 350 miles (560 km) or 5 hours. Your total trip so far is about 870 miles or 1400 km over roughly 12.5 hours of driving.
Finally, Idaho Falls Regional Airport is your destination after driving about 530 miles (860 km) or 9 hours. Your total trip with all stops is around 1,400 miles or 2260 km, taking roughly 21.5 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.