There are
1,750 mi
from Sunnyvale, CA to Sioux City, IA
That's the driving distance. It would take 1 day 6 hours to go from Sunnyvale, California to Sioux City, Iowa.
The flight distance (direct flight from Sunnyvale, CA to Sioux City, IA) is 1,397.74 mi.
1,750 mi = 1.61 kms