There are
2,095 mi
from Allentown, PA to Holladay, UT
That's the driving distance. It would take 1 day 13 hours to go from Allentown, Pennsylvania to Holladay, Utah.
The flight distance (direct flight from Allentown, PA to Holladay, UT) is 1,891.22 mi.
2,095 mi = 3.22 kms