There are
1,358 mi
from Upland, CA to Denton, TX
That's the driving distance. It would take 23 hours 38 mins to go from Upland, California to Denton, Texas.
The flight distance (direct flight from Upland, CA to Denton, TX) is 1,179.45 mi.
1,358 mi = 2,185.10 kms