There are
1,813 mi
from Longmont, CO to Massapequa Park, NY
That's the driving distance. It would take 1 day 9 hours to go from Longmont, Colorado to Massapequa Park, New York.
The flight distance (direct flight from Longmont, CO to Massapequa Park, NY) is 1,655.89 mi.
1,813 mi = 1.61 kms