There are
1,424 mi
from San Clemente, CA to Garland, TX
That's the driving distance. It would take 1 day to go from San Clemente, California to Garland, Texas.
The flight distance (direct flight from San Clemente, CA to Garland, TX) is 1,211.44 mi.
1,424 mi = 2,291.27 kms