There are
2,061 mi
from Naperville, IL to Suisun City, CA
That's the driving distance. It would take 1 day 11 hours to go from Naperville, Illinois to Suisun City, California.
The flight distance (direct flight from Naperville, IL to Suisun City, CA) is 1,798.44 mi.
2,061 mi = 3.22 kms