There are
1,883 mi
from Pendleton, OR to Oswego, IL
That's the driving distance. It would take 1 day 8 hours to go from Pendleton, Oregon to Oswego, Illinois.
The flight distance (direct flight from Pendleton, OR to Oswego, IL) is 1,536.13 mi.
1,883 mi = 3,029.98 kms