There are
1,378 mi
from Denton, TX to Monrovia, CA
That's the driving distance. It would take 23 hours 59 mins to go from Denton, Texas to Monrovia, California.
The flight distance (direct flight from Denton, TX to Monrovia, CA) is 1,199.51 mi.
1,378 mi = 2,218.14 kms