There are
1,769 mi
from Richardson, TX to Rohnert Park, CA
That's the driving distance. It would take 1 day 7 hours to go from Richardson, Texas to Rohnert Park, California.
The flight distance (direct flight from Richardson, TX to Rohnert Park, CA) is 1,499.60 mi.
1,769 mi = 2,846.47 kms