There are
2,020 mi
from Chatham, IL to Gresham, OR
That's the driving distance. It would take 1 day 11 hours to go from Chatham, Illinois to Gresham, Oregon.
The flight distance (direct flight from Chatham, IL to Gresham, OR) is 1,699.95 mi.
2,020 mi = 3,251.38 kms