There are
1,598 mi
from Layton, UT to Brownsville, TX
That's the driving distance. It would take 1 day 5 hours to go from Layton, Utah to Brownsville, Texas.
The flight distance (direct flight from Layton, UT to Brownsville, TX) is 1,334.95 mi.
1,598 mi = 2,572.50 kms