There are
1,904 mi
from Tinley Park, IL to Pendleton, OR
That's the driving distance. It would take 1 day 8 hours to go from Tinley Park, Illinois to Pendleton, Oregon.
The flight distance (direct flight from Tinley Park, IL to Pendleton, OR) is 1,566.19 mi.
1,904 mi = 3,064.34 kms