There are
938 mi
from Cheyenne, WY to Wheaton, IL
That's the driving distance. It would take 16 hours 29 mins to go from Cheyenne, Wyoming to Wheaton, Illinois.
The flight distance (direct flight from Cheyenne, WY to Wheaton, IL) is 864.91 mi.
938 mi = 1,510.20 kms