There are
1,939 mi
from Carlsbad, CA to Paducah, KY
That's the driving distance. It would take 1 day 10 hours to go from Carlsbad, California to Paducah, Kentucky.
The flight distance (direct flight from Carlsbad, CA to Paducah, KY) is 1,640.88 mi.
1,939 mi = 1.61 kms