There are
2,559 mi
from South San Francisco, CA to Marietta, OH
That's the driving distance. It would take 1 day 21 hours to go from South San Francisco, California to Marietta, Ohio.
The flight distance (direct flight from South San Francisco, CA to Marietta, OH) is 2,197.67 mi.
2,559 mi = 4,118.53 kms