There are
1,021 mi
from Pharr, TX to Rolla, MO
That's the driving distance. It would take 18 hours 48 mins to go from Pharr, Texas to Rolla, Missouri.
The flight distance (direct flight from Pharr, TX to Rolla, MO) is 894.05 mi.
1,021 mi = 1,642.88 kms