There are
1,372 mi
from Flower Mound, TX to San Jacinto, CA
That's the driving distance. It would take 23 hours 34 mins to go from Flower Mound, Texas to San Jacinto, California.
The flight distance (direct flight from Flower Mound, TX to San Jacinto, CA) is 1,145.16 mi.
1,372 mi = 1.61 kms