There are
2,893 mi
from Redwood City, CA to Wilmington, DE
That's the driving distance. It would take 2 days 2 hours to go from Redwood City, California to Wilmington, Delaware.
The flight distance (direct flight from Redwood City, CA to Wilmington, DE) is 2,496.78 mi.
2,893 mi = 4,655.63 kms