There are
2,703 mi
from Simi Valley, CA to Havre De Grace, MD
That's the driving distance. It would take 2 days to go from Simi Valley, California to Havre De Grace, Maryland.
The flight distance (direct flight from Simi Valley, CA to Havre De Grace, MD) is 2,364.12 mi.
2,703 mi = 3.22 kms