There are
1,560 mi
from St Petersburg, FL to Sioux City, IA
That's the driving distance. It would take 1 day 4 hours to go from St Petersburg, Florida to Sioux City, Iowa.
The flight distance (direct flight from St Petersburg, FL to Sioux City, IA) is 1,276.95 mi.
1,560 mi = 1.61 kms