There are
1,818 mi
from Fort Smith, AR to Larkspur, CA
That's the driving distance. It would take 1 day 7 hours to go from Fort Smith, Arkansas to Larkspur, California.
The flight distance (direct flight from Fort Smith, AR to Larkspur, CA) is 1,563.43 mi.
1,818 mi = 2,925.30 kms