Your total trip with all stops is around 2,860 miles / 4610 km, taking roughly 43 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 PHL and SEA.
Start from Philadelphia International Airport.
Cleveland, Ohio is stopping point #1 after driving about 440 miles (710 km) or 7 hours.
Chicago, Illinois is stopping point #2 after driving about 340 miles (550 km) or 5.5 hours. Your total trip so far is about 780 miles or 1260 km over roughly 12 hours of driving.
Minneapolis, Minnesota is stopping point #3 after driving about 410 miles (660 km) or 6 hours. Your total trip so far is about 1,190 miles or 1920 km over roughly 18.5 hours of driving.
Fargo, North Dakota is stopping point #4 after driving about 240 miles (380 km) or 3.5 hours. Your total trip so far is about 1,430 miles or 2300 km over roughly 22 hours of driving.
Billings, Montana is stopping point #5 after driving about 610 miles (980 km) or 8.5 hours. Your total trip so far is about 2,040 miles or 3280 km over roughly 30.5 hours of driving.
Missoula, Montana is stopping point #6 after driving about 350 miles (560 km) or 5 hours. Your total trip so far is about 2,380 miles or 3830 km over roughly 35.5 hours of driving.
Finally, Seattle-Tacoma International Airport is your destination after driving about 480 miles (770 km) or 7.5 hours. Your total trip with all stops is around 2,860 miles or 4610 km, taking roughly 43 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.