There are
2,137 mi
from West Allis, WI to Lathrop, CA
That's the driving distance. It would take 1 day 12 hours to go from West Allis, Wisconsin to Lathrop, California.
The flight distance (direct flight from West Allis, WI to Lathrop, CA) is 1,774.30 mi.
2,137 mi = 3,438.73 kms