There are
1,493 mi
from Fort Smith, AR to Monrovia, CA
That's the driving distance. It would take 1 day 1 hour to go from Fort Smith, Arkansas to Monrovia, California.
The flight distance (direct flight from Fort Smith, AR to Monrovia, CA) is 1,339.31 mi.
1,493 mi = 2,402.45 kms