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O'Hare Intl

$166+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — ORD
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2612:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Tue 3/314:05 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 3/5$204
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 3/2712:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Sun 3/294:05 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 3/6$244
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 6/277:53 am
SUX
-
ORD
Nonstop1h 52m
United Airlines
Wed 8/194:00 pm
ORD
-
SUX
Nonstop1h 53m
United Airlines
Deal found 3/9$265
This United Airlines deal was found by Cheapflights users on 3/6. 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 3/2112:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Wed 3/253:50 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 3/6$326
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/1712:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Sun 4/194:05 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 3/9$340
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 3/2512:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Tue 3/314:05 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 3/9$355
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sat 4/412:55 pm
SUX
-
ORD
Nonstop1h 45m
United Airlines
Sat 4/1110:04 pm
ORD
-
SUX
1 stop12h 42m
United Airlines
Deal found 3/7$360
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/912:55 pm
SUX
-
ORD
Nonstop1h 45m
United Airlines
Mon 4/1311:03 pm
ORD
-
SUX
1 stop11h 43m
United Airlines
Deal found 3/9$379
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 10/246:00 am
SUX
-
ORD
1 stop16h 44m
United Airlines
Wed 10/284:00 pm
ORD
-
SUX
Nonstop1h 54m
United Airlines
Deal found 3/9$386

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(United Airlines)

One-way from

$166
(United Airlines)

Popular in

May

Cheapest in

November

Average price

$326

Good round-trip deal

$368 or less

Good one-way deal

$263 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.
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
Highest demand for flights based on searches. 11% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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.
Search Deals

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 March 10, 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

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 6/27

7:53 am-9:45 am

Nonstop1h 52m

Chicago O'Hare Intl

Wed 8/19

4:00 pm-5:53 pm

Nonstop1h 53m

$265

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 3/25

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Tue 3/31

4:05 pm-5:56 pm

Nonstop1h 51m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 4/9

12:55 pm-2:40 pm

Nonstop1h 45m

Chicago O'Hare Intl

Tue 4/14

2:05 pm-10:46 am

1 stop20h 41m

$376

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 9/6

11:32 am-10:41 pm

1 stop11h 09m

Chicago O'Hare Intl

Sun 9/20

4:00 pm-5:53 pm

Nonstop1h 53m

$391
Quickest round-trip

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 4/9

12:55 pm-2:40 pm

Nonstop1h 45m

Chicago O'Hare Intl

Mon 4/13

4:05 pm-5:56 pm

Nonstop1h 51m

$397

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 3/26

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Mon 3/30

8:25 pm-11:44 pm

2 stops27h 19m

$398

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 4/2

12:55 pm-2:40 pm

Nonstop1h 45m

Chicago O'Hare Intl

Mon 4/6

4:05 pm-5:56 pm

Nonstop1h 51m

$497
Cheapest one-way
Quickest one-way

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 3/29

6:32 pm-9:37 am

1 stop15h 05m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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 March.
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 month to book a flight from Sioux City to Chicago O'Hare Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $101). Flying from Sioux City to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $221). 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 March 10, 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 March 10, 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
9,409 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $265, 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 $244.

  • 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 $387, our data shows the cheapest flight currently is $220. 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, February is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $101). Flying from Sioux City to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $221). 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
Gurnee
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Elk Grove Village
Skokie
Oak Brook
South Holland
Beloit
Libertyville
Waukegan
Warrenville
Bridgeview
Oakbrook Terrace

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$244Average$355FlexibilityNo cancel feeOn-time69%

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