$171+ Cheap flights from O'Hare Intl (ORD) to Sioux City (SUX)
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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SUX
Oct 25 — Nov 11
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to Sioux City 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 O'Hare Intl to Sioux City
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Cheapest flights from O'Hare Intl to Sioux CityExplore the most affordable flight options available from O'Hare Intl to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
Explore the most affordable flight options available from O'Hare Intl to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/64:20 pm -
Nonstop1h 50m
Mon 11/96:00 am -
Nonstop1h 59m
Deal found 9/24![United Airlines logo]()
$244
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 10/234:00 pm -
Nonstop1h 53m
Mon 10/266:00 am -
Nonstop1h 59m
Deal found 9/25![United Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/154:00 pm -
Nonstop1h 53m
Sun 10/188:35 am -
Nonstop1h 54m
Deal found 9/21![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Sun 10/254:20 pm -
Nonstop1h 50m
Tue 10/276:00 am -
Nonstop1h 59m
Deal found 9/23![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/94:00 pm -
Nonstop1h 53m
Tue 10/138:35 am -
Nonstop1h 54m
Deal found 9/24![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/104:00 pm -
Nonstop1h 53m
Wed 10/148:35 am -
Nonstop1h 54m
Deal found 9/25![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/244:00 pm -
Nonstop1h 53m
Tue 10/276:00 am -
Nonstop1h 59m
Deal found 9/22![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Mon 11/234:20 pm -
Nonstop1h 50m
Fri 11/276:00 am -
Nonstop1h 59m
Deal found 9/22![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/254:20 pm -
Nonstop1h 50m
Fri 11/66:00 am -
Nonstop1h 59m
Deal found 9/20![United Airlines logo]()
$437
Best flights from O'Hare Intl to Sioux CityDiscover carefully curated flight deals from O'Hare Intl to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
Discover carefully curated flight deals from O'Hare Intl to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/94:00 pm -
Nonstop1h 53m
Tue 10/138:35 am -
Nonstop1h 54m
Deal found 9/24![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/104:00 pm -
Nonstop1h 53m
Wed 10/148:35 am -
Nonstop1h 54m
Deal found 9/25![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/244:00 pm -
Nonstop1h 53m
Tue 10/276:00 am -
Nonstop1h 59m
Deal found 9/22![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/254:20 pm -
Nonstop1h 50m
Fri 11/66:45 pm -
1 stop18h 28m
Deal found 9/20![United Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/134:20 pm -
Nonstop1h 50m
Sun 11/156:00 am -
Nonstop1h 59m
Deal found 9/21![United Airlines logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 10/237:01 am -
2 stops16h 42m
Mon 10/266:00 am -
Nonstop1h 59m
Deal found 9/25![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Sun 11/224:20 pm -
Nonstop1h 50m
Fri 11/276:00 am -
Nonstop1h 59m
Deal found 9/22![United Airlines logo]()
$537
Last-minute flights from O'Hare Intl to Sioux CityDiscover last-minute flight deals from O'Hare Intl to Sioux City. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Sioux City. Data last updated September 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/94:00 pm -
Nonstop1h 53m
Tue 10/138:35 am -
Nonstop1h 54m
Deal found 9/24![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/104:00 pm -
Nonstop1h 53m
Wed 10/148:35 am -
Nonstop1h 54m
Deal found 9/25![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/154:00 pm -
Nonstop1h 53m
Sun 10/188:35 am -
Nonstop1h 54m
Deal found 9/21![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 10/234:00 pm -
Nonstop1h 53m
Mon 10/266:00 am -
Nonstop1h 59m
Deal found 9/25![United Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/244:00 pm -
Nonstop1h 53m
Tue 10/276:00 am -
Nonstop1h 59m
Deal found 9/22![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Sun 10/254:20 pm -
Nonstop1h 50m
Tue 10/276:00 am -
Nonstop1h 59m
Deal found 9/23![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/254:20 pm -
Nonstop1h 50m
Fri 11/66:00 am -
Nonstop1h 59m
Deal found 9/20![United Airlines logo]()
$437
One-way flights from O'Hare Intl to Sioux CitySearch for one-way flight options from O'Hare Intl to Sioux City. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from O'Hare Intl to Sioux City. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/54:00 pm -
Nonstop1h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$171
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Fri 10/234:00 pm -
Nonstop1h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$181
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Tue 10/134:00 pm -
Nonstop1h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$261
This United Airlines deal was found by Cheapflights users on 9/24. 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 9/304:00 pm -
Nonstop1h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 10/287:00 am -
2 stops16h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 11/309:20 pm -
2 stops26h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$392
Find flight deals from O'Hare Intl to Sioux City
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Sioux City (SUX). 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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $224 (United Airlines) |
One-way from | $171 (United Airlines) |
Good round-trip deal | $224 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Sioux City 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 September 25, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sioux City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Thu 12/17
4:10 pm-6:11 pm
Nonstop2h 01m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$171
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Mon 10/5
4:00 pm-5:53 pm
Nonstop1h 53m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$171
Quickest round-trip
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Tue 12/1
4:15 pm-6:05 pm
Nonstop1h 50m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Fri 10/23
4:00 pm-5:53 pm
Nonstop1h 53m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Tue 10/13
8:40 am-11:43 pm
2 stops15h 03m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$312
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Wed 10/28
7:00 am-11:43 pm
2 stops16h 43m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$372
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Fri 10/9
4:00 pm-5:53 pm
Nonstop1h 53m
Sioux City Sioux Gateway
Tue 10/13
8:35 am-10:29 am
Nonstop1h 54m
$378
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Sat 10/10
4:00 pm-5:53 pm
Nonstop1h 53m
Sioux City Sioux Gateway
Wed 10/14
8:35 am-10:29 am
Nonstop1h 54m
$387
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Mon 11/30
9:20 pm-11:43 pm
2 stops26h 23m
Sioux City Sioux Gateway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$392
ChicagoSioux City
ORD Chicago O'Hare Intl - SUX Sioux City Sioux Gateway
ORDSUX
Chicago O'Hare Intl
Sat 10/24
4:00 pm-5:53 pm
Nonstop1h 53m
Sioux City Sioux Gateway
Tue 10/27
6:00 am-7:59 am
Nonstop1h 59m
$395
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to Sioux City
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 O'Hare Intl to Sioux City in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Sioux City flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Sioux City 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 Chicago O'Hare Intl Airport-Sioux City 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 O'Hare Intl to Sioux City
Have a flexible travel schedule? Discover the best time to fly to Sioux City from O'Hare Intl with our price prediction graph.
ORD-SUX
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 Chicago O'Hare Intl Airport to Sioux City
Prices
Airlines
Reviews of airlines servicing Sioux City
Get insights into the airlines that provide service to Sioux City. 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 Sioux City. Reviews last updated September 25, 2026.
See what other customers who have flown with United Airlines from Chicago O'Hare Intl Airport to Sioux City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Sioux City flight routes
Alternative routes for O'Hare Intl to Sioux City
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Complete your trip
Complete your trip to Sioux City by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from O'Hare Intl to Sioux City by cabin class
Find flights from O'Hare Intl to Sioux City, based on your preferred cabin class, be it economy, premium economy, business, or first class.
O'Hare Intl and Sioux City flights
Browse other O'Hare Intl and Sioux City flight options. Last updated on September 25, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sioux City
Explore flights to Sioux City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Top airline flying from O'Hare Intl to Sioux City
Discover the top airline that operate flights from O'Hare Intl to Sioux City. 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 September 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$204 | Average$354 | FlexibilityNo cancel fee | On-time69% |