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O'Hare Intl

$204+ Cheap flights from Sioux City (SUX) to O'Hare Intl (ORD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — ORD
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Sioux City to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to O'Hare Intl (ORD). 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 October 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$204
(United Airlines)

Popular in

October

Cheapest in

February

Average price

$654

Good round-trip deal

$302 or less

Good one-way deal

$228 or less
Provider with most accurate pricing for Sioux City Sioux Gateway-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Chicago O'Hare Intl flights.
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From Sioux City Sioux Gateway to Chicago O'Hare Intl
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Highest demand for flights based on searches. 18% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Sioux City Sioux Gateway to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Sioux City Sioux Gateway to Chicago O'Hare Intl.
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Find flight deals from Sioux City to O'Hare Intl

Cheapest flights from Sioux City to O'Hare Intl
Explore the most affordable flight options available from Sioux City to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 11/217:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sun 11/239:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/27$204
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/267:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Mon 12/19:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/27$265
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/47:50 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sat 12/69:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/25$326
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/77:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sun 11/99:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/27$354
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/267:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sun 11/309:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/27$355
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/107:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Fri 11/149:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 10/26$416

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to O'Hare Intl 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 October 28, 2025.
Use the filters below to find and compare flights from Sioux City to Chicago O'Hare Intl Airport that are best for you.

Fly from

Sioux City

Fly to

O'Hare Intl

Route

Depart

Return

Price

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 11/21

7:45 am-9:32 am

Nonstop1h 47m

Chicago O'Hare Intl

Sun 11/23

9:10 pm-10:59 pm

Nonstop1h 49m

$204

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 4/24

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Sun 4/26

3:35 pm-5:32 pm

Nonstop1h 57m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 12/4

7:50 am-9:37 am

Nonstop1h 47m

Chicago O'Hare Intl

Sat 12/6

9:10 pm-10:59 pm

Nonstop1h 49m

$326

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/6

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Thu 3/12

3:35 pm-5:32 pm

Nonstop1h 57m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 11/26

7:45 am-9:32 am

Nonstop1h 47m

Chicago O'Hare Intl

Sun 11/30

9:10 pm-10:59 pm

Nonstop1h 49m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 2/28

1:00 pm-2:47 pm

Nonstop1h 47m

Chicago O'Hare Intl

Wed 3/4

7:10 am-11:42 pm

1 stop16h 32m

$409

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 11/9

7:45 am-9:32 am

Nonstop1h 47m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Compare providers for flights from Sioux City to O'Hare Intl

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 Sioux City to O'Hare Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Sioux City-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux City-Chicago O'Hare Intl Airport flights, Cheapflights users trust Expedia the most. Expedia 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 Sioux City-Chicago O'Hare Intl Airport 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 Sioux City to O'Hare Intl

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

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

Currently, September is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $102). Flying from Sioux City to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Sioux City to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

When flying from Sioux City to Chicago O'Hare Intl Airport, 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with United Airlines from Sioux City to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Sioux City to O'Hare Intl. 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 from for flights from Sioux City to Chicago O'Hare Intl?

    Located just 7.0 mi from the city center, Sioux City Sioux Gateway is the airport most travelers will use when flying to Chicago O'Hare Intl from Sioux City. Booking flights from Sioux Gateway (SUX) to Chicago O'Hare Intl should be relatively easy as there is 1 daily outbound flight to Chicago O'Hare Intl from 1 airline.

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

    For as low as $204, United Airlines can have you in Chicago O'Hare Intl Airport from Sioux City in 1h 47m. The distance from Sioux City to Chicago O'Hare Intl Airport is about 435 mi. Generally, flights for this route are nonstop.

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

    Flying on United Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $219. This flight start at 43% lower than the current average price 3 months from now.

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

    While on average a flight from Sioux City to Chicago O'Hare Intl Airport is generally $351, our data shows the cheapest flight currently is $165. When looking at the most popular route, (Sioux City Sioux Gateway - Chicago O'Hare Intl), you can expect to pay $204 for that flight.

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

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $102). Flying from Sioux City to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $224). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Oak Brook
Elk Grove Village
Beloit
Rockford
Naperville
Racine
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sioux City to O'Hare Intl

Discover the top airline that operate flights from Sioux City to O'Hare Intl. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$303FlexibilityNo cancel feeOn-time69%

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