There are
2,032 mi
from St Charles, MO to Tigard, OR
That's the driving distance. It would take 1 day 11 hours to go from St Charles, Missouri to Tigard, Oregon.
The flight distance (direct flight from St Charles, MO to Tigard, OR) is 1,703.33 mi.
2,032 mi = 3,270.53 kms