There are
2,396 mi
from Redwood City, CA to Frankfort, KY
That's the driving distance. It would take 1 day 17 hours to go from Redwood City, California to Frankfort, Kentucky.
The flight distance (direct flight from Redwood City, CA to Frankfort, KY) is 2,025.24 mi.
2,396 mi = 3,856.01 kms