There are
2,657 mi
from Buffalo, NY to Rohnert Park, CA
That's the driving distance. It would take 1 day 22 hours to go from Buffalo, New York to Rohnert Park, California.
The flight distance (direct flight from Buffalo, NY to Rohnert Park, CA) is 2,293.69 mi.
2,657 mi = 3.22 kms