There are
1,508 mi
from Fort Smith, AR to Irvine, CA
That's the driving distance. It would take 1 day 2 hours to go from Fort Smith, Arkansas to Irvine, California.
The flight distance (direct flight from Fort Smith, AR to Irvine, CA) is 1,333.75 mi.
1,508 mi = 2,426.18 kms