There are
1,092 mi
from Fullerton, CA to Cheyenne, WY
That's the driving distance. It would take 18 hours 52 mins to go from Fullerton, California to Cheyenne, Wyoming.
The flight distance (direct flight from Fullerton, CA to Cheyenne, WY) is 874.93 mi.
1,092 mi = 1.61 kms