There are
1,064 mi
from Waterloo, IA to Knightdale, NC
That's the driving distance. It would take 20 hours 21 mins to go from Waterloo, Iowa to Knightdale, North Carolina.
The flight distance (direct flight from Waterloo, IA to Knightdale, NC) is 873.80 mi.
1,064 mi = 1,712.63 kms