There are
2,086 mi
from Champaign, IL to Suisun City, CA
That's the driving distance. It would take 1 day 12 hours to go from Champaign, Illinois to Suisun City, California.
The flight distance (direct flight from Champaign, IL to Suisun City, CA) is 1,803.93 mi.
2,086 mi = 3.22 kms