There are
270 mi
from Sioux City, IA to Lexington, NE
That's the driving distance. It would take 5 hours 17 mins to go from Sioux City, Iowa to Lexington, Nebraska.
The flight distance (direct flight from Sioux City, IA to Lexington, NE) is 209.64 mi.
270 mi = 434.99 kms