There are
1,157 mi
from Phoenix, AZ to Walla Walla, WA
That's the driving distance. It would take 21 hours 53 mins to go from Phoenix, Arizona to Walla Walla, Washington.
The flight distance (direct flight from Phoenix, AZ to Walla Walla, WA) is 932.37 mi.
1,157 mi = 1.61 kms