SUX - ORD

$166 Find Cheap Flights from Sioux City to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to Chicago departing on 5/9. 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 Chicago O'Hare Intl Airport

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

Cheapest round-trip
$204
United Airlines
Wed 9/16Sun 9/20
SUX - ORD • Non-stop
Cheapest one-way
$166
United Airlines
Sat 5/9
SUX - ORD • Non-stop
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 45m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
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We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to Chicago 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 Sioux City to Chicago

Wed, Sep 16 - Sun, Sep 20
United Airlines Logo
9:03 am - 10:57 am
SUX
-
ORD
1h 54mnonstop
United Airlines Logo
4:00 pm - 5:53 pm
ORD
-
SUX
1h 53mnonstop
$204United Airlines
Sat, Jun 27 - Wed, Aug 19
United Airlines Logo
7:43 am - 9:35 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
4:00 pm - 5:53 pm
ORD
-
SUX
1h 53mnonstop
$244United Airlines
Fri, Jun 19 - Sun, Jun 21
United Airlines Logo
7:53 am - 9:45 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
$318United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
United Airlines Logo
4:15 pm - 6:06 pm
ORD
-
SUX
1h 51mnonstop
$326United Airlines
Sat, Jun 27 - Wed, Aug 19
United Airlines Logo
7:43 am - 9:35 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
7:45 pm - 10:55 am
ORD
-
SUX
15h 10m
1 stop
$384United Airlines
Tue, Jun 30 - Sun, Jul 5
United Airlines Logo
7:43 am - 9:35 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
4:00 pm - 5:54 pm
ORD
-
SUX
1h 54mnonstop
$397United Airlines
Wed, Sep 16 - Sun, Sep 20
United Airlines Logo
11:32 am - 9:12 pm
SUX
-
ORD
9h 40m
1 stop
United Airlines Logo
4:00 pm - 5:53 pm
ORD
-
SUX
1h 53mnonstop
$406United Airlines
Sat, Jun 27 - Wed, Aug 19
United Airlines Logo
7:43 am - 9:35 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
11:00 pm - 10:55 am
ORD
-
SUX
11h 55m
2 stops
$412United Airlines
Fri, May 1 - Tue, May 5
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
United Airlines Logo
4:15 pm - 6:06 pm
ORD
-
SUX
1h 51mnonstop
$416United Airlines
Thu, Jun 25 - Mon, Jul 6
United Airlines Logo
7:43 am - 9:35 am
SUX
-
ORD
1h 52mnonstop
United Airlines Logo
9:50 pm - 10:57 am
ORD
-
SUX
13h 07m
1 stop
$432United Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Sioux City to Chicago 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 Sioux City to Chicago?

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

When flying from Sioux City to Chicago, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Sioux City, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

Good to know

Cheapest flight$166
Flight from Sioux City to Chicago

When to book flights from Sioux City to Chicago

Are your dates flexible? Find out the best times to travel from Sioux City to Chicago 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 Sioux City to Chicago flights

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

    In the last 3 days, the lowest price for a flight from Sioux City to Chicago O'Hare Intl Airport was $166 for a one-way ticket and $204 for a round-trip.

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

    No

  • Which airports will I be using when flying from Sioux City to Chicago?

    Sioux City and Chicago are both served by 1 main airport. You will leave Sioux City from Sioux City Sioux Gateway and will be arriving at Chicago O'Hare Intl.

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

    American Airlines, and Delta offer inflight Wi-Fi service on the Sioux City to Chicago flight route.

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

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

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

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

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

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

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

    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 Sioux City to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux City to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Sioux City 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 Sioux City to Chicago?

    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 Chicago with an airline and back to Sioux City with another airline. Booking your flights between Sioux City and ORD 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 Sioux City to Chicago?

    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 Chicago from Sioux City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sioux City to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $180 or less one-way and $455 or less round-trip.

Prefer to fly direct from Sioux City to Chicago?

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

Direct departures

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

Direct returns

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

Reviews of the top airline flying from Sioux City to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Sioux City to Chicago. 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 Sioux City to Chicago? 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 9605 reviews
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

4.0 OkaySarah, Apr 2026
SCE - ORD
Read more United Airlines reviews

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

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

Information on your arrival and departure airports