There are
1,625 mi
from St Petersburg, FL to Monticello, MN
That's the driving distance. It would take 1 day 6 hours to go from St Petersburg, Florida to Monticello, Minnesota.
The flight distance (direct flight from St Petersburg, FL to Monticello, MN) is 1,357.36 mi.
1,625 mi = 2,615.47 kms