There are
2,245 mi
from Green Bay, WI to Lompoc, CA
That's the driving distance. It would take 1 day 16 hours to go from Green Bay, Wisconsin to Lompoc, California.
The flight distance (direct flight from Green Bay, WI to Lompoc, CA) is 1,842.45 mi.
2,245 mi = 3.22 kms