There are
1,800 mi
from Knoxville, TN to Logan, UT
That's the driving distance. It would take 1 day 8 hours to go from Knoxville, Tennessee to Logan, Utah.
The flight distance (direct flight from Knoxville, TN to Logan, UT) is 1,546.60 mi.
1,800 mi = 1.61 kms