Miles between Washington, DC and Longmont, CO

There are
1,682 mi
from Washington, DC to Longmont, CO

That's the driving distance. It would take 1 day 6 hours to go from Washington, District of Columbia to Longmont, Colorado.

The flight distance (direct flight from Washington, DC to Longmont, CO) is 1,491.98 mi.

1,682 mi = 1.61 kms