There are
1,336 mi
from La Mesa, CA to Southlake, TX
That's the driving distance. It would take 22 hours 55 mins to go from La Mesa, California to Southlake, Texas.
The flight distance (direct flight from La Mesa, CA to Southlake, TX) is 1,152.73 mi.
1,336 mi = 2,150.77 kms