There are
1,750 mi
from Tempe, AZ to Mt Prospect, IL
That's the driving distance. It would take 1 day 7 hours to go from Tempe, Arizona to Mt Prospect, Illinois.
The flight distance (direct flight from Tempe, AZ to Mt Prospect, IL) is 1,434.40 mi.
1,750 mi = 1.61 kms