There are
1,174 mi
from Iowa City, IA to Holladay, UT
That's the driving distance. It would take 20 hours 3 mins to go from Iowa City, Iowa to Holladay, Utah.
The flight distance (direct flight from Iowa City, IA to Holladay, UT) is 1,055.41 mi.
1,174 mi = 1.61 kms