There are
1,466 mi
from Sioux City, IA to St Augustine, FL
That's the driving distance. It would take 1 day 3 hours to go from Sioux City, Iowa to St Augustine, Florida.
The flight distance (direct flight from Sioux City, IA to St Augustine, FL) is 1,207.20 mi.
1,466 mi = 1.61 kms