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Sioux City

$161+ Cheap flights from Chicago (CHI) to Sioux City (SUX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SUX
Jun 2 — Jun 91
Tue 6/2
Tue 6/9
1 adult, Economy
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Cheap flight deals from Chicago to Sioux City

Cheapest flights from Chicago to Sioux City
Explore the most affordable flight options available from Chicago to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 3, 2026.

This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Mon 5/257:53 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Deal found 4/29$244
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/214:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Mon 5/257:53 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Deal found 4/29$265
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Tue 6/27:53 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Deal found 4/30$283
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:59 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Fri 6/128:08 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Deal found 5/1$326
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Sun 9/139:03 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Deal found 5/1$344
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:15 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Fri 5/812:55 pm
SUX
-
ORD
Nonstop1h 45m
United Airlines
Deal found 4/30$354
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Wed 6/37:53 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Deal found 4/30$355
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Mon 9/216:30 pm
SUX
-
ORD
1 stop23h 57m
United Airlines
Deal found 5/2$425

Find flight deals from Chicago to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$244
(United Airlines)

One-way from

$161
(United Airlines)

Popular in

February

Cheapest in

October

Average price

$463
Provider with most accurate pricing for Chicago (CHI)-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Sioux City Sioux Gateway flights.
Search Deals
From Chicago (CHI) to Sioux City Sioux Gateway
Search Deals
One-way flight from Chicago (CHI) to Sioux City Sioux Gateway
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Sioux City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 3, 2026.
Use the filters below to find and compare flights from Chicago to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 5/22

4:00 pm-5:54 pm

Nonstop1h 54m

Sioux City Sioux Gateway

Mon 5/25

7:53 am-9:45 am

Nonstop1h 52m

$265

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 5/28

4:00 pm-5:54 pm

Nonstop1h 54m

Sioux City Sioux Gateway

Sat 5/30

7:53 am-9:45 am

Nonstop1h 52m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 5/29

4:00 pm-5:54 pm

Nonstop1h 54m

Sioux City Sioux Gateway

Wed 6/3

11:32 am-9:39 pm

1 stop10h 07m

$384
Quickest round-trip

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Sat 5/16

4:15 pm-6:06 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Wed 5/20

12:55 pm-2:40 pm

Nonstop1h 45m

$439

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 6/4

7:00 am-11:44 pm

2 stops16h 44m

Sioux City Sioux Gateway

Sat 6/6

8:08 am-10:00 am

Nonstop1h 52m

$448

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Wed 5/13

4:15 pm-6:06 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Sun 5/17

12:55 pm-2:40 pm

Nonstop1h 45m

$458

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Wed 6/10

3:59 pm-5:53 pm

Nonstop1h 54m

Sioux City Sioux Gateway

Fri 6/12

6:30 pm-12:29 pm

2 stops17h 59m

$479

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Wed 5/20

4:15 pm-6:06 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Thu 5/21

7:53 am-9:45 am

Nonstop1h 52m

$539

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Wed 5/20

12:40 pm-10:57 am

2 stops22h 17m

Sioux City Sioux Gateway

Fri 5/22

6:30 pm-9:38 am

1 stop15h 08m

$585
Cheapest one-way

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 5/29

4:00 pm-5:54 pm

Nonstop1h 54m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Chicago to Sioux City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Sioux City in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Sioux City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from CHI to SUX?

Find hourly flight availability from Chicago to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 3, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Sioux City as you normally would.

Weekly flight availability from Chicago to Sioux City

Explore weekly flight availability from Chicago to Sioux City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 3, 2026.

The most flights from CHI to SUX are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Chicago to Sioux City?

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated May 3, 2026.
Read through reviews of airlines operating flights from Chicago to Sioux City, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,681 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,681 reviews
United Airlines
7.4
Good
9,681 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sioux City from Chicago?

    Sioux City Sioux Gateway (SUX), located 7.0 mi from the city center, is the airport you fly into when you book flights from Chicago to Sioux City. 1 airline have flights to Sioux Gateway from Chicago on a regular basis. Booking flights from Chicago to Sioux City Sioux Gateway should not be difficult; the airport handles an average of 1 inbound flight from Chicago per day.

  • How long is the flight from Chicago to Sioux City?

    There are many flights that can get you from Chicago to Sioux City in 1h 54m. Fly via United Airlines to get the fastest option. The distance from Chicago to Sioux City is about 435 mi. Generally, flights for this route are nonstop.

  • What is the cheapest airline to fly from Chicago to Sioux City round-trip?

    Cheapflights users have booked flights from Chicago to Sioux City round-trip from $204. United Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Chicago to Sioux City that include hotel bookings?

    Yes. In addition to deals on Chicago to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Sioux City.

  • Can I find deals for business class flights from Chicago to Sioux City?

    Yes. Cheapflights offers flight deals from Chicago to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Chicago to Sioux City

Discover the top airline that operate flights from Chicago to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$204Average$354FlexibilityNo cancel feeOn-time69%

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