There are
2,169 mi
from Rosemead, CA to Dayton, OH
That's the driving distance. It would take 1 day 14 hours to go from Rosemead, California to Dayton, Ohio.
The flight distance (direct flight from Rosemead, CA to Dayton, OH) is 1,900.37 mi.
2,169 mi = 3,490.26 kms