There are
1,207 mi
from Cheyenne, WY to Romulus, MI
That's the driving distance. It would take 21 hours 24 mins to go from Cheyenne, Wyoming to Romulus, Michigan.
The flight distance (direct flight from Cheyenne, WY to Romulus, MI) is 1,105.12 mi.
1,207 mi = 1,943.17 kms