Stopping points from Washington Dulles International Airport to Seattle-Tacoma International Airport:

• Start from Washington Dulles International Airport
• 7 hours to Columbus, Ohio after driving about 410 miles / 660 km
• 5.5 hours to Chicago, Illinois after driving about 360 miles / 570 km
• 6 hours to Minneapolis, Minnesota after driving about 410 miles / 660 km
• 6 hours to Bismarck, North Dakota after driving about 430 miles / 690 km
• 6 hours to Billings, Montana after driving about 420 miles / 670 km
• 5 hours to Missoula, Montana after driving about 350 miles / 560 km
• 7.5 hours to Seattle-Tacoma International Airport after driving about 480 miles / 770 km

Your total trip with all stops is around 2,840 miles / 4570 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 IAD and SEA.

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Stopping points from IAD to SEA

Start from Washington Dulles International Airport.

Columbus, Ohio is stopping point #1 after driving about 410 miles (660 km) or 7 hours.

Chicago, Illinois is stopping point #2 after driving about 360 miles (570 km) or 5.5 hours. Your total trip so far is about 770 miles or 1230 km over roughly 12.5 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 1,180 miles or 1890 km over roughly 18.5 hours of driving.

Bismarck, North Dakota is stopping point #4 after driving about 430 miles (690 km) or 6 hours. Your total trip so far is about 1,600 miles or 2580 km over roughly 25 hours of driving.

Billings, Montana is stopping point #5 after driving about 420 miles (670 km) or 6 hours. Your total trip so far is about 2,020 miles or 3240 km over roughly 31 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 2,360 miles or 3800 km over roughly 36 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 2,840 miles or 4570 km, taking roughly 43 hours for the whole trip.

Stopping point calculator

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.