The driving distance from Washington DC to Niagara Falls (ON) is 409 miles
or 658 kilometers
This is a long road trip, starting from Washington, DC and arriving at your destination of Niagara Falls, Canada with a total driving time of 8 hours, 26 minutes
If you just want to know how far it is between Washington DC and Niagara Falls (ON), the straight line distance is 310 miles
or 499 kilometers
If you are a pilot flying a private plane, you can fly straight from Washington, DC to Niagara Falls, Canada for a total flight time of 1 hour, 7 minutes
Book a flight:
If you're a traveler planning a trip and you want to book a commercial flight, you can try searching for flights between IAD and YYZ.