There are
1,851 mi
from San Clemente, CA to Mccomb, MS
That's the driving distance. It would take 1 day 8 hours to go from San Clemente, California to Mccomb, Mississippi.
The flight distance (direct flight from San Clemente, CA to Mccomb, MS) is 1,588.16 mi.
1,851 mi = 2,979.48 kms