There are
1,580 mi
from Upland, CA to Texarkana, TX
That's the driving distance. It would take 1 day 3 hours to go from Upland, California to Texarkana, Texas.
The flight distance (direct flight from Upland, CA to Texarkana, TX) is 1,353.42 mi.
1,580 mi = 1.61 kms