There are
1,561 mi
from Layton, UT to Mcallen, TX
That's the driving distance. It would take 1 day 5 hours to go from Layton, Utah to Mcallen, Texas.
The flight distance (direct flight from Layton, UT to Mcallen, TX) is 1,292.09 mi.
1,561 mi = 2,511.84 kms