There are
1,959 mi
from Gary, IN to Walla Walla, WA
That's the driving distance. It would take 1 day 9 hours to go from Gary, Indiana to Walla Walla, Washington.
The flight distance (direct flight from Gary, IN to Walla Walla, WA) is 1,565.16 mi.
1,959 mi = 1.61 kms