There are
1,151 mi
from Longmont, CO to Kendallville, IN
That's the driving distance. It would take 20 hours 53 mins to go from Longmont, Colorado to Kendallville, Indiana.
The flight distance (direct flight from Longmont, CO to Kendallville, IN) is 1,038.91 mi.
1,151 mi = 1.61 kms