There are
811 mi
from Sioux City, IA to Magnolia, AR
That's the driving distance. It would take 15 hours 2 mins to go from Sioux City, Iowa to Magnolia, Arkansas.
The flight distance (direct flight from Sioux City, IA to Magnolia, AR) is 660.67 mi.
811 mi = 1,305.01 kms