There are
798 mi
from Mcallen, TX to Sunland Park, NM
That's the driving distance. It would take 13 hours 31 mins to go from Mcallen, Texas to Sunland Park, New Mexico.
The flight distance (direct flight from Mcallen, TX to Sunland Park, NM) is 635.19 mi.
798 mi = 1,284.09 kms