There are
1,920 mi
from Wheaton, IL to Walla Walla, WA
That's the driving distance. It would take 1 day 9 hours to go from Wheaton, Illinois to Walla Walla, Washington.
The flight distance (direct flight from Wheaton, IL to Walla Walla, WA) is 1,521.76 mi.
1,920 mi = 3,090.43 kms