There are
1,476 mi
from Tucson, AZ to St Helens, OR
That's the driving distance. It would take 1 day 3 hours to go from Tucson, Arizona to St Helens, Oregon.
The flight distance (direct flight from Tucson, AZ to St Helens, OR) is 1,135.24 mi.
1,476 mi = 1.61 kms