There are
1,296 mi
from Flower Mound, TX to Barstow, CA
That's the driving distance. It would take 22 hours 33 mins to go from Flower Mound, Texas to Barstow, California.
The flight distance (direct flight from Flower Mound, TX to Barstow, CA) is 1,147.10 mi.
1,296 mi = 2,086.11 kms