$171 Find Cheap Flights from Chicago to Sioux City - Compare and Save

In the last 5 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Sioux City was $171 for a one-way ticket and $224 for a round-trip.

Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

Only American Airlines offers inflight Wi-Fi service on the Chicago to Sioux City flight route.

The Canadair (Bombardier) Regional Jet is the aircraft model that flies most regularly on the Chicago to Sioux City flight route.

Star Alliance is the only airline alliance operating flights between Chicago and Sioux City.

There are nonstop flights from Chicago to Sioux City on a daily basis.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Sioux City.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Chicago with another airline. Booking your flights between Chicago and SUX can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.