There are
1,415 mi
from San Clemente, CA to Addison, TX
That's the driving distance. It would take 1 day to go from San Clemente, California to Addison, Texas.
The flight distance (direct flight from San Clemente, CA to Addison, TX) is 1,200.06 mi.
1,415 mi = 2,277.91 kms