There are
1,425 mi
from Mesquite, TX to San Clemente, CA
That's the driving distance. It would take 1 day to go from Mesquite, Texas to San Clemente, California.
The flight distance (direct flight from Mesquite, TX to San Clemente, CA) is 1,215.07 mi.
1,425 mi = 1.61 kms