Miles between Ontario, CA and Walla Walla, WA

There are
1,031 mi
from Ontario, CA to Walla Walla, WA

That's the driving distance. It would take 19 hours 40 mins to go from Ontario, California to Walla Walla, Washington.

The flight distance (direct flight from Ontario, CA to Walla Walla, WA) is 830.01 mi.

1,031 mi = 1.61 kms