About 400 miles
State: 2547 miles DC: 402 miles
DC: 402 miles State: 2547 miles
Google Earth cites the distance from New York to Niagara falls as 411 miles, and Niagara Falls to Washington DC as 406 miles. That's a total of 817 miles, and a total driving time of 14 hours 8 minutes.
from Washington DC to Niagara Falls NY is 7 hours 44 min (infor from mapquest.com)
You can get a plane that will take you from Washington DC to Niagara Falls Ontario. It might not be a direct flight, you might have to change planes, but, there are flights that leave from Arlington, Virginia to Niagara Falls.
It depends where the plane is taking off from
7 hours, 45 minutes to drive from Washington DC to Buffalo NY, then another 20 mins to get to the Falls.
about 410 miles
DC to Newark is 95 miles. About the same to Dover.
air miles from Chicago Washington DC
about 230 miles