There are
1,741 mi
from Richardson, TX to Suisun City, CA
That's the driving distance. It would take 1 day 6 hours to go from Richardson, Texas to Suisun City, California.
The flight distance (direct flight from Richardson, TX to Suisun City, CA) is 1,463.18 mi.
1,741 mi = 2,802.60 kms