There are
1,908 mi
from Gresham, OR to Pittsburg, KS
That's the driving distance. It would take 1 day 8 hours to go from Gresham, Oregon to Pittsburg, Kansas.
The flight distance (direct flight from Gresham, OR to Pittsburg, KS) is 1,531.13 mi.
1,908 mi = 1.61 kms