There are
1,819 mi
from Garland, TX to Clearlake, CA
That's the driving distance. It would take 1 day 8 hours to go from Garland, Texas to Clearlake, California.
The flight distance (direct flight from Garland, TX to Clearlake, CA) is 1,506.77 mi.
1,819 mi = 1.61 kms