$244+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — ORD
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Sioux City to O'Hare Intl 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 Sioux City to O'Hare Intl
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Best
Last-minute
One-way
Cheapest flights from Sioux City to O'Hare IntlExplore 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 25, 2026.
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 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/20. 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 12/35:00 am -
Nonstop1h 59m
Sun 12/64:15 pm -
Nonstop1h 50m
Deal found 10/20![United Airlines logo]()
$244
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sun 10/256:00 am -
Nonstop1h 59m
Sun 11/14:20 pm -
Nonstop1h 50m
Deal found 10/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/266:00 am -
Nonstop1h 59m
Sat 11/2811:35 am -
Nonstop1h 50m
Deal found 10/22![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/166:00 am -
Nonstop1h 59m
Mon 11/231:00 pm -
1 stop10h 43m
Deal found 10/20![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/86:00 am -
Nonstop1h 59m
Thu 11/124:20 pm -
Nonstop1h 50m
Deal found 10/24![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/276:00 am -
Nonstop1h 59m
Tue 11/34:20 pm -
Nonstop1h 50m
Deal found 10/19![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/306:46 pm -
2 stops14h 14m
Sat 1/24:10 pm -
Nonstop2h 01m
Deal found 10/21![United Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/56:00 am -
Nonstop1h 59m
Mon 11/99:00 pm -
1 stop26h 43m
Deal found 10/21![United Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 10/286:00 am -
Nonstop1h 59m
Sat 10/314:20 pm -
Nonstop1h 50m
Deal found 10/24![United Airlines logo]()
$588
Best flights from Sioux City to O'Hare IntlDiscover carefully curated flight deals from Sioux City to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Sioux City to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Sat 1/305:04 am -
Nonstop2h 06m
Wed 2/34:10 pm -
Nonstop2h 01m
Deal found 10/23![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/166:00 am -
Nonstop1h 59m
Mon 11/231:00 pm -
1 stop10h 43m
Deal found 10/20![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 11/216:00 am -
Nonstop1h 59m
Mon 11/234:20 pm -
Nonstop1h 50m
Deal found 10/21![United Airlines logo]()
$553
Last-minute flights from Sioux City to O'Hare IntlDiscover last-minute flight deals from Sioux City to O'Hare Intl. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux City to O'Hare Intl. Data last updated October 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sun 10/256:00 am -
Nonstop1h 59m
Sun 11/14:20 pm -
Nonstop1h 50m
Deal found 10/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/276:00 am -
Nonstop1h 59m
Tue 11/34:20 pm -
Nonstop1h 50m
Deal found 10/19![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 10/286:00 am -
Nonstop1h 59m
Sat 10/314:20 pm -
Nonstop1h 50m
Deal found 10/24![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/56:00 am -
Nonstop1h 59m
Mon 11/99:00 pm -
1 stop26h 43m
Deal found 10/21![United Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 11/66:00 am -
Nonstop1h 59m
Sun 11/84:20 pm -
Nonstop1h 50m
Deal found 10/22![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/86:00 am -
Nonstop1h 59m
Thu 11/124:20 pm -
Nonstop1h 50m
Deal found 10/24![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/166:00 am -
Nonstop1h 59m
Mon 11/231:00 pm -
1 stop10h 43m
Deal found 10/20![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/266:00 am -
Nonstop1h 59m
Sat 11/2811:35 am -
Nonstop1h 50m
Deal found 10/22![United Airlines logo]()
$415
One-way flights from Sioux City to O'Hare IntlSearch for one-way flight options from Sioux City to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Sioux City to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 12/115:00 am -
Nonstop1h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/66:00 am -
Nonstop1h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 12/125:00 am -
Nonstop1h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$418
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (United Airlines) |
Good round-trip deal | $445 or less |
Good one-way deal | $185 or less |
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 7,457,451 searches. Data last updated October 25, 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
Cheapest round-trip
Quickest round-trip
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Fri 12/11
5:00 am-6:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$316
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Sat 1/30
5:04 am-7:10 am
Nonstop2h 06m
Chicago O'Hare Intl
Wed 2/3
4:10 pm-6:11 pm
Nonstop2h 01m
$325
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Fri 11/6
6:00 am-7:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$413
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Sat 12/12
5:00 am-6:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$418
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Mon 11/16
6:00 am-7:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Mon 11/23
1:00 pm-11:43 pm
1 stop10h 43m
$426
Sioux CityChicago
SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl
SUXORD
Sioux City Sioux Gateway
Sat 11/21
6:00 am-7:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Mon 11/23
4:20 pm-6:10 pm
Nonstop1h 50m
$553
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SUX-ORD
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
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 25, 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.
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Overall
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Overall
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near Chicago O'Hare Intl Airport?
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Sioux City and O'Hare Intl flights
Browse other Sioux City and O'Hare Intl flight options. Last updated on October 25, 2026.
Other flights from Sioux City
Browse through other flights departing from Sioux City. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
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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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$224 | Average$397 | FlexibilityNo cancel fee | On-time69% |