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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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$204
(United Airlines)

Popular in

January

Cheapest in

February

Average price

$304

Good round-trip deal

$348 or less

Good one-way deal

$300 or less
From Sioux City Sioux Gateway to Chicago O'Hare Intl
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Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/17:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Mon 10/279:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$204
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/17:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Tue 10/289:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$244
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/227:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sat 11/299:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$265
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/136:48 pmSUX - ORD
2 stops23h 49mUnited Airlines
Sun 9/149:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Deal found 9/10$304
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/187:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Sun 10/199:08 pmORD - SUX
Nonstop1h 52mUnited Airlines
Deal found 9/10$326
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/36:51 pmSUX - ORD
2 stops14h 52mUnited Airlines
Mon 10/69:08 pmORD - SUX
Nonstop1h 52mUnited Airlines
Deal found 9/9$329
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/306:51 pmSUX - ORD
2 stops14h 52mUnited Airlines
Tue 10/289:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$334
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/16:51 pmSUX - ORD
2 stops14h 52mUnited Airlines
Sun 10/269:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$345
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/256:51 pmSUX - ORD
2 stops23h 50mUnited Airlines
Sun 10/269:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/9$349
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/127:49 amSUX - ORD
Nonstop1h 51mUnited Airlines
Mon 9/159:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Deal found 9/10$354
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/307:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Mon 10/279:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$355

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 September 11, 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

Wed 10/1

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Mon 10/27

9:10 pm-10:59 pm

Nonstop1h 49m

$204

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 10/25

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Sun 10/26

9:10 pm-10:59 pm

Nonstop1h 49m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Tue 10/28

9:10 pm-10:59 pm

Nonstop1h 49m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 11/22

7:45 am-9:32 am

Nonstop1h 47m

Chicago O'Hare Intl

Sat 11/29

9:10 pm-10:59 pm

Nonstop1h 49m

$265

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 10/18

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Sun 10/19

9:08 pm-11:00 pm

Nonstop1h 52m

$326

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 9/30

6:51 pm-9:43 am

2 stops14h 52m

Chicago O'Hare Intl

Mon 10/27

9:10 pm-10:59 pm

Nonstop1h 49m

$334

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 10/3

6:51 pm-11:28 am

1 stop16h 37m

Chicago O'Hare Intl

Mon 10/6

9:08 pm-11:00 pm

Nonstop1h 52m

$342

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 9/30

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Tue 10/28

9:10 pm-10:59 pm

Nonstop1h 49m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/22

6:51 pm-11:28 am

1 stop16h 37m

Chicago O'Hare Intl

Sun 10/26

9:10 pm-10:59 pm

Nonstop1h 49m

$361

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

6:51 pm-8:25 pm

1 stop25h 34m

Chicago O'Hare Intl

Sun 10/26

9:10 pm-10:59 pm

Nonstop1h 49m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
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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, August is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $245). Flying from Sioux City to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 September 11, 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 September 11, 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
8,937 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

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 $204, United Airlines can have you in Chicago O'Hare Intl Airport from Sioux City in 1h 51m. 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 36% 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 $393, our data shows the cheapest flight currently is $197. 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, August is the cheapest month in which you can book a flight from Sioux City to Chicago O'Hare Intl Airport (average of $245). Flying from Sioux City to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Beloit
Racine
Rockford
Orland Park
Oak Brook
Downers Grove
Naperville
Elk Grove Village
Evanston
Merrillville
Bridgeview
Warrenville

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$307FlexibilityNo cancel feeOn-time69%

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