There are
1,416 mi
from Sioux City, IA to Pasco, WA
That's the driving distance. It would take 1 day to go from Sioux City, Iowa to Pasco, Washington.
The flight distance (direct flight from Sioux City, IA to Pasco, WA) is 1,146.32 mi.
1,416 mi = 1.61 kms