There are
1,773 mi
from Longmont, CO to Rahway, NJ
That's the driving distance. It would take 1 day 8 hours to go from Longmont, Colorado to Rahway, New Jersey.
The flight distance (direct flight from Longmont, CO to Rahway, NJ) is 1,614.13 mi.
1,773 mi = 1.61 kms