There are
2,880 mi
from Redwood City, CA to Phoenixville, PA
That's the driving distance. It would take 2 days 2 hours to go from Redwood City, California to Phoenixville, Pennsylvania.
The flight distance (direct flight from Redwood City, CA to Phoenixville, PA) is 2,493.14 mi.
2,880 mi = 4,634.56 kms