There are
831 mi
from Mcallen, TX to Fayetteville, AR
That's the driving distance. It would take 15 hours 9 mins to go from Mcallen, Texas to Fayetteville, Arkansas.
The flight distance (direct flight from Mcallen, TX to Fayetteville, AR) is 722.32 mi.
831 mi = 1,337.99 kms