There are
2,526 mi
from Upland, CA to Knightdale, NC
That's the driving distance. It would take 1 day 20 hours to go from Upland, California to Knightdale, North Carolina.
The flight distance (direct flight from Upland, CA to Knightdale, NC) is 2,206.64 mi.
2,526 mi = 3.22 kms