There are
1,213 mi
from Sioux City, IA to Washington, DC
That's the driving distance. It would take 22 hours 34 mins to go from Sioux City, Iowa to Washington, District of Columbia.
The flight distance (direct flight from Sioux City, IA to Washington, DC) is 1,041.96 mi.
1,213 mi = 1.61 kms