Miles between Longmont, CO and Washington, DC

There are
1,683 mi
from Longmont, CO to Washington, DC

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

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

1,683 mi = 1.61 kms