There are
1,293 mi
from Crossville, TN to Longmont, CO
That's the driving distance. It would take 23 hours 3 mins to go from Crossville, Tennessee to Longmont, Colorado.
The flight distance (direct flight from Crossville, TN to Longmont, CO) is 1,127.62 mi.
1,293 mi = 2,081.23 kms