ORD - SUX

$204 Find Cheap Flights from Chicago to Sioux City

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Sioux City departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Sioux City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$204
United Airlines
Fri 5/22Tue 5/26
ORD - SUX • Non-stop
Cheapest one-way
$251
United Airlines
Sun 4/26
ORD - SUX • Non-stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 1h 52m
Direct flights
Direct flights
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Direct flights
Direct flights
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We hope you love your trip to Sioux City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Sioux City (ORD-SUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Sioux City

Fri, May 22 - Tue, May 26
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$204United Airlines
Fri, May 22 - Mon, May 25
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$244United Airlines
Fri, May 22 - Mon, May 25
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$265United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
4:15 pm - 6:06 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$295United Airlines
Thu, Apr 30 - Sat, May 2
United Airlines Logo
4:15 pm - 6:06 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$326United Airlines
Fri, May 22 - Tue, May 26
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
11:32 am - 12:44 am
SUX
-
ORD
13h 12m
1 stop
$406United Airlines
Fri, May 22 - Sun, May 24
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$416United Airlines
Tue, May 26 - Sat, May 30
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$432United Airlines
Fri, May 1 - Sun, May 3
United Airlines Logo
4:15 pm - 6:06 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$445United Airlines
Sat, May 23 - Mon, May 25
United Airlines Logo
8:15 pm - 10:57 am
ORD
-
SUX
14h 42m
2 stops
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
$448United Airlines
Booking Insights

KAYAK's insights & trends for Chicago to Sioux City flights

Get data-powered insights and trends into flights from Chicago to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago to Sioux City?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Sioux City clicked on KAYAK for each day over the last 12 months.

For Chicago to Sioux City, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Sioux City back to Chicago, the best deals are generally found on Friday, with Sunday being the most expensive.

Find deals

Good to know

Cheapest flight$204
Flight from Chicago to Sioux City

When to book flights from Chicago to Sioux City

Are your dates flexible? Find out the best times to travel from Chicago to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Sioux City flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Sioux City?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Sioux City was $251 for a one-way ticket and $204 for a round-trip.

  • Do I need a passport to fly between Chicago and Sioux City?

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

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Sioux City?

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

  • Which aircraft models fly most regularly from Chicago to Sioux City?

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

  • Which airline alliances offer flights from Chicago to Sioux City?

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

  • On which days can I fly direct from Chicago to Sioux City?

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

  • How does KAYAK find such low prices on flights from Chicago to Sioux City?

    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.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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.

  • What is the Hacker Fare option on flights from Chicago to Sioux City?

    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.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Sioux City?

    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.

Prefer to fly direct from Chicago to Sioux City?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Sioux City Sioux Gateway.
Find which airlines fly direct from Chicago O'Hare Intl Airport to Sioux City Sioux Gateway Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Sioux City Sioux Gateway

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Sioux City Sioux Gateway to Chicago O'Hare Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Chicago to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9607 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

6.0 GoodAlejandro, Apr 2026
ORD - LNK
Read more United Airlines reviews

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Awful. No counter attendants. No dinner offered due to delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Everything you need to know for your flight from Chicago to Sioux City

Information on your arrival and departure airports

Chicago (ORD)
Sioux City (SUX)