There are
1,698 mi
from Cheyenne, WY to Wilmington, DE
That's the driving distance. It would take 1 day 6 hours to go from Cheyenne, Wyoming to Wilmington, Delaware.
The flight distance (direct flight from Cheyenne, WY to Wilmington, DE) is 1,535.06 mi.
1,698 mi = 2,731.95 kms