There are
665 mi
from Sioux City, IA to Speedway, IN
That's the driving distance. It would take 12 hours 5 mins to go from Sioux City, Iowa to Speedway, Indiana.
The flight distance (direct flight from Sioux City, IA to Speedway, IN) is 558.73 mi.
665 mi = 1,070.57 kms