There are
2,572 mi
from Irvine, CA to Smithfield, NC
That's the driving distance. It would take 1 day 21 hours to go from Irvine, California to Smithfield, North Carolina.
The flight distance (direct flight from Irvine, CA to Smithfield, NC) is 2,232.66 mi.
2,572 mi = 4,138.95 kms