There are
1,403 mi
from Longmont, CO to Sylacauga, AL
That's the driving distance. It would take 1 day to go from Longmont, Colorado to Sylacauga, Alabama.
The flight distance (direct flight from Longmont, CO to Sylacauga, AL) is 1,147.91 mi.
1,403 mi = 1.61 kms