There are
1,720 mi
from Walnut Creek, CA to Garland, TX
That's the driving distance. It would take 1 day 6 hours to go from Walnut Creek, California to Garland, Texas.
The flight distance (direct flight from Walnut Creek, CA to Garland, TX) is 1,467.82 mi.
1,720 mi = 2,767.52 kms