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O'Hare Intl

$176+ Cheap flights from Sioux City (SUX) to O'Hare Intl (ORD)

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.
SUX — ORD
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap 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 July 26, 2026.

This United Airlines deal was found by Cheapflights users on 7/23. 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 8/208:10 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Thu 8/274:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/23$224
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/218:10 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Mon 8/244:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/24$233
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/208:10 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Mon 8/244:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/22$264
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 9/129:05 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Mon 9/144:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/25$305
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/146:43 pm
SUX
-
ORD
2 stops18h 09m
United Airlines
Sat 8/154:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/24$344
This United Airlines deal was found by Cheapflights users on 7/21. 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 12/29:03 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Sat 12/54:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Deal found 7/21$346
This United Airlines deal was found by Cheapflights users on 7/21. 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 7/248:10 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Sun 7/263:59 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Deal found 7/21$374
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/268:35 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Sat 10/1010:34 am
ORD
-
SUX
2 stops13h 09m
United Airlines
Deal found 7/24$392
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 9/228:06 am
SUX
-
ORD
Nonstop1h 54m
United Airlines
Tue 9/294:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 7/25$395

Find 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 July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$224
(United Airlines)

One-way from

$176
(United Airlines)

Good round-trip deal

$353 or less

Good one-way deal

$307 or less
Provider with most accurate pricing for Sioux City Sioux Gateway-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Chicago O'Hare Intl flights.
Search Deals
From Sioux City Sioux Gateway to Chicago O'Hare Intl
Search Deals
One-way flight from Sioux City Sioux Gateway to Chicago O'Hare Intl
Search Deals
Price to beat on a round-trip flight from Sioux City Sioux Gateway to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Sioux City Sioux Gateway to Chicago O'Hare Intl.
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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 July 26, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 12/2

9:03 am-10:55 am

Nonstop1h 52m

Chicago O'Hare Intl

Sat 12/5

4:00 pm-5:54 pm

Nonstop1h 54m

$346

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 10/3

8:35 am-10:29 am

Nonstop1h 54m

Chicago O'Hare Intl

Mon 10/5

4:30 pm-6:23 pm

Nonstop1h 53m

$395

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 9/8

8:06 am-10:00 am

Nonstop1h 54m

Chicago O'Hare Intl

Tue 9/15

9:35 pm-11:43 pm

1 stop26h 08m

$410

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 8/21

8:10 am-10:04 am

Nonstop1h 54m

Chicago O'Hare Intl

Mon 8/24

5:51 pm-10:55 am

1 stop17h 04m

$410

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 9/12

9:05 am-10:59 am

Nonstop1h 54m

Chicago O'Hare Intl

Mon 9/14

10:45 am-11:43 pm

2 stops12h 58m

$477

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 8/14

8:10 am-10:04 am

Nonstop1h 54m

Chicago O'Hare Intl

Tue 8/18

4:00 pm-5:53 pm

Nonstop1h 53m

$486
Cheapest one-way
Quickest one-way

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Mon 8/24

8:10 am-10:04 am

Nonstop1h 54m

$176

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 8/20

8:10 am-10:04 am

Nonstop1h 54m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Sorted by cheapest first

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 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 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 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 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 July 26, 2026.

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 July 26, 2026.
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
10,034 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
10,034 reviews
United Airlines
7.4
Good
10,034 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 $346, United Airlines can have you in Chicago O'Hare Intl Airport from Sioux City in 1h 52m. 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 $224.

  • 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 $484, our data shows the cheapest flight currently is $175. When looking at the most popular route, (Sioux City Sioux Gateway - Chicago O'Hare Intl), you can expect to pay $233 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.

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
Benton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet

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 July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$224Average$355FlexibilityNo cancel feeOn-time69%

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