There are
1,842 mi
from Oswego, IL to Pullman, WA
That's the driving distance. It would take 1 day 8 hours to go from Oswego, Illinois to Pullman, Washington.
The flight distance (direct flight from Oswego, IL to Pullman, WA) is 1,460.88 mi.
1,842 mi = 2,964.37 kms