There are
1,900 mi
from Ottawa, KS to Corvallis, OR
That's the driving distance. It would take 1 day 8 hours to go from Ottawa, Kansas to Corvallis, Oregon.
The flight distance (direct flight from Ottawa, KS to Corvallis, OR) is 1,495.60 mi.
1,900 mi = 3,058.49 kms