There are
435 mi
from Cheyenne, WY to Farmington, UT
That's the driving distance. It would take 7 hours 17 mins to go from Cheyenne, Wyoming to Farmington, Utah.
The flight distance (direct flight from Cheyenne, WY to Farmington, UT) is 368.24 mi.
435 mi = 699.69 kms