There are
2,139 mi
from San Bernardino, CA to Dayton, OH
That's the driving distance. It would take 1 day 13 hours to go from San Bernardino, California to Dayton, Ohio.
The flight distance (direct flight from San Bernardino, CA to Dayton, OH) is 1,858.08 mi.
2,139 mi = 3.22 kms