Miles between Gaithersburg, MD and Longmont, CO

There are
1,660 mi
from Gaithersburg, MD to Longmont, CO

That's the driving distance. It would take 1 day 5 hours to go from Gaithersburg, Maryland to Longmont, Colorado.

The flight distance (direct flight from Gaithersburg, MD to Longmont, CO) is 1,479.75 mi.

1,660 mi = 2,671.55 kms