There are
2,385 mi
from Youngstown, OH to Monrovia, CA
That's the driving distance. It would take 1 day 18 hours to go from Youngstown, Ohio to Monrovia, California.
The flight distance (direct flight from Youngstown, OH to Monrovia, CA) is 2,082.98 mi.
2,385 mi = 3.22 kms