HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$171+ Cheap flights from O'Hare Intl (ORD) 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SUX
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Sioux City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from O'Hare Intl to Sioux City

Cheapest flights from O'Hare Intl to Sioux City
Explore the most affordable flight options available from O'Hare Intl to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

This United Airlines deal was found by Cheapflights users on 8/10. 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 9/154:00 pm -
Nonstop1h 53m
Tue 9/228:06 am -
Nonstop1h 54m
Deal found 8/10$224
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/294:00 pm -
Nonstop1h 53m
Sun 8/308:10 am -
Nonstop1h 54m
Deal found 8/6$264
This United Airlines deal was found by Cheapflights users on 8/6. 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 12/244:00 pm -
Nonstop1h 54m
Wed 12/308:15 am -
Nonstop1h 52m
Deal found 8/6$305
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/204:00 pm -
Nonstop1h 53m
Sat 8/229:05 am -
Nonstop1h 54m
Deal found 8/6$346
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/224:00 pm -
Nonstop1h 53m
Mon 8/248:10 am -
Nonstop1h 54m
Deal found 8/10$360
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/106:00 am -
1 stop17h 43m
Mon 10/128:35 am -
Nonstop1h 54m
Deal found 8/11$386
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/14:00 pm -
Nonstop1h 53m
Sat 9/511:30 am -
2 stops23h 59m
Deal found 8/6$392
This United Airlines deal was found by Cheapflights users on 8/9. 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 8/284:00 pm -
Nonstop1h 53m
Mon 8/318:10 am -
Nonstop1h 54m
Deal found 8/9$395
This United Airlines deal was found by Cheapflights users on 8/7. 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 10/24:00 pm -
Nonstop1h 53m
Wed 10/76:58 pm -
2 stops12h 45m
Deal found 8/7$409
This United Airlines deal was found by Cheapflights users on 8/6. 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 12/2410:00 pm -
2 stops25h 47m
Thu 12/318:15 am -
Nonstop1h 52m
Deal found 8/6$414
This United Airlines deal was found by Cheapflights users on 8/6. 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 12/248:30 pm -
1 stop27h 17m
Sat 1/28:15 am -
Nonstop1h 52m
Deal found 8/6$422

Find flight deals from O'Hare Intl to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$224
(United Airlines)

One-way from

$171

Good one-way deal

$261 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Sioux City Sioux Gateway flights.
Search Deals
From Chicago O'Hare Intl to Sioux City Sioux Gateway
Search Deals
One-way flight from Chicago O'Hare Intl to Sioux City Sioux Gateway
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Sioux City Sioux Gateway.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 August 11, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Tue 9/15

4:00 pm-5:53 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Tue 9/22

8:06 am-10:00 am

Nonstop1h 54m

$224

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Sat 8/29

4:00 pm-5:53 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Sun 8/30

8:10 am-10:04 am

Nonstop1h 54m

$224

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Tue 9/1

4:00 pm-5:53 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Sat 9/5

11:30 am-11:29 am

2 stops23h 59m

$392

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Sat 9/5

2:42 pm-10:55 am

1 stop20h 13m

Sioux City Sioux Gateway

Mon 9/7

8:10 am-10:04 am

Nonstop1h 54m

$410

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Fri 8/21

4:00 pm-5:53 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Sat 8/22

9:05 am-10:59 am

Nonstop1h 54m

$436

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Sat 10/10

4:00 pm-5:53 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Mon 10/12

8:35 am-10:29 am

Nonstop1h 54m

$437
Cheapest one-way
Quickest one-way

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Thu 8/20

4:00 pm-5:53 pm

Nonstop1h 53m

$171

ChicagoSioux City

ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway

ORDSUX

Chicago O'Hare Intl

Sun 8/23

4:00 pm-5:53 pm

Nonstop1h 53m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Sorted by cheapest first

Compare providers for flights from O'Hare Intl 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 O'Hare Intl to Sioux City in August.
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 O'Hare Intl Airport-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 O'Hare Intl Airport-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 O'Hare Intl to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from O'Hare Intl 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 O'Hare Intl Airport to Sioux City

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

Find hourly flight availability from O'Hare Intl 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 August 11, 2026.

When flying from Chicago O'Hare Intl Airport to Sioux City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 11, 2026.
See what other customers who have flown with United Airlines from Chicago O'Hare Intl Airport to Sioux City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,104 reviews

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,104 reviews
United Airlines
7.4
Good
10,104 reviews

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl?

    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 O'Hare Intl to Sioux City. 1 airline have flights to Sioux Gateway from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Sioux City Sioux Gateway should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • How long is the flight from Chicago O'Hare Intl Airport to Sioux City?

    Airlines like United Airlines fly from Chicago O'Hare Intl Airport to Sioux City in about 1h 53m. The time it takes to get you to your destination is usually consistent. Chicago O'Hare Intl Airport and Sioux City are separated by a distance of 435 mi. Most flights are nonstop.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Sioux City round-trip?

    Currently priced at $204, United Airlines will fly you from Chicago O'Hare Intl Airport to Sioux City and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Sioux City?

    The cheapest flight price from Chicago O'Hare Intl Airport to Sioux City is $164. On average you can expect to pay $303. The most popular route, (Chicago O'Hare Intl - Sioux City Sioux Gateway), can usually be booked for $224.

  • Can I find deals for flights from O'Hare Intl to Sioux City that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to Sioux City?

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

  • Can I find deals for business class flights from O'Hare Intl to Sioux City?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from O'Hare Intl to Sioux City

Discover the top airline that operate flights from O'Hare Intl 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 August 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$204Average$354FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.