There are
1,202 mi
from Longmont, CO to Campbellsville, KY
That's the driving distance. It would take 21 hours 28 mins to go from Longmont, Colorado to Campbellsville, Kentucky.
The flight distance (direct flight from Longmont, CO to Campbellsville, KY) is 1,080.06 mi.
1,202 mi = 1,935.07 kms