There are
1,747 mi
from Mill Valley, CA to Midlothian, TX
That's the driving distance. It would take 1 day 6 hours to go from Mill Valley, California to Midlothian, Texas.
The flight distance (direct flight from Mill Valley, CA to Midlothian, TX) is 1,485.35 mi.
1,747 mi = 2,811.55 kms