There are
2,110 mi
from Gresham, OR to Champaign, IL
That's the driving distance. It would take 1 day 12 hours to go from Gresham, Oregon to Champaign, Illinois.
The flight distance (direct flight from Gresham, OR to Champaign, IL) is 1,758.32 mi.
2,110 mi = 3,395.58 kms