Miles between Longmont, CO and Watertown, MA

There are
1,972 mi
from Longmont, CO to Watertown, MA

That's the driving distance. It would take 1 day 12 hours to go from Longmont, Colorado to Watertown, Massachusetts.

The flight distance (direct flight from Longmont, CO to Watertown, MA) is 1,756.35 mi.

1,972 mi = 1.61 kms