There are
1,297 mi
from Mcallen, TX to Sevierville, TN
That's the driving distance. It would take 1 day to go from Mcallen, Texas to Sevierville, Tennessee.
The flight distance (direct flight from Mcallen, TX to Sevierville, TN) is 1,093.24 mi.
1,297 mi = 1.61 kms