There are
2,138 mi
from Redwood City, CA to Cary, IL
That's the driving distance. It would take 1 day 13 hours to go from Redwood City, California to Cary, Illinois.
The flight distance (direct flight from Redwood City, CA to Cary, IL) is 1,820.32 mi.
2,138 mi = 3,440.90 kms