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$176+ Cheap flights from Sioux City (SUX) to Chicago (CHI)

SUX — CHI
Sep 25 — Oct 21
Fri 9/25
Fri 10/2
1 adult, Economy
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Cheap flight deals from Sioux City to Chicago

Cheapest flights from Sioux City to Chicago

Fri 9/258:35 am -
Nonstop1h 54m
Mon 9/284:00 pm -
Nonstop1h 53m
Deal found 8/23$224
Wed 9/98:05 am -
Nonstop1h 54m
Tue 9/224:00 pm -
Nonstop1h 53m
Deal found 8/23$305
Tue 9/228:06 am -
Nonstop1h 54m
Tue 9/294:00 pm -
Nonstop1h 53m
Deal found 8/24$316
Thu 11/266:00 am -
Nonstop1h 59m
Sun 11/2911:29 am -
Nonstop1h 50m
Deal found 8/22$325
Sat 9/196:30 pm -
2 stops18h 45m
Sun 9/204:00 pm -
Nonstop1h 53m
Deal found 8/21$344
Wed 9/98:05 am -
Nonstop1h 54m
Wed 9/233:59 pm -
Nonstop1h 53m
Deal found 8/23$346
Sat 8/299:05 am -
Nonstop1h 54m
Mon 8/314:00 pm -
Nonstop1h 53m
Deal found 8/25$374
Thu 9/108:05 am -
Nonstop1h 54m
Tue 9/224:00 pm -
Nonstop1h 53m
Deal found 8/23$395

Find flight deals from Sioux City to Chicago

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

$469 or less

Good one-way deal

$423 or less
Provider with most accurate pricing for Sioux City Sioux Gateway-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Chicago (CHI) flights.
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From Sioux City Sioux Gateway to Chicago (CHI)
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One-way flight from Sioux City Sioux Gateway to Chicago (CHI)
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Price to beat on a round-trip flight from Sioux City Sioux Gateway to Chicago (CHI).
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Price to beat on a one-way flight from Sioux City Sioux Gateway to Chicago (CHI).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sioux City to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Sioux CityChicago

SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl

SUXORD

Sioux City Sioux Gateway

Sat 1/30

9:03 am-10:55 am

Nonstop1h 52m

Chicago O'Hare Intl

Wed 2/3

4:00 pm-5:54 pm

Nonstop1h 54m

$224

Sioux CityChicago

SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl

SUXORD

Sioux City Sioux Gateway

Wed 10/14

8:35 am-10:29 am

Nonstop1h 54m

Chicago O'Hare Intl

Wed 10/21

4:00 pm-5:53 pm

Nonstop1h 53m

$224

Sioux CityChicago

SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl

SUXORD

Sioux City Sioux Gateway

Thu 1/7

9:03 am-10:55 am

Nonstop1h 52m

Chicago O'Hare Intl

Sun 1/10

4:00 pm-5:54 pm

Nonstop1h 54m

$395
Cheapest one-way
Quickest one-way

Sioux CityChicago

SUX Sioux City Sioux Gateway - ORD Chicago O'Hare Intl

SUXORD

Sioux City Sioux Gateway

Wed 9/30

8:35 am-10:29 am

Nonstop1h 54m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/22

Sorted by cheapest first

Compare providers for flights from Sioux City to Chicago

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux City to Chicago in August.
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 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 flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux City-Chicago 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 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 Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Sioux City with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Sioux City to Chicago

What is the cheapest time of day to fly from SUX to CHI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sioux City to Chicago as you normally would.

Weekly flight availability from Sioux City to Chicago

The most flights from SUX to CHI are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Chicago

Get a feel of what it's like to fly with United Airlines from Sioux City to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,122 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,122 reviews
United Airlines
7.4
Good
10,122 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

Related info for your journey

  • What airport do you fly from for flights from Sioux City to Chicago?

    Located just 7.0 mi from the city center, Sioux City Sioux Gateway is the airport most travelers will use when flying to Chicago from Sioux City. Booking flights from Sioux Gateway (SUX) to Chicago should be relatively easy as there is 1 daily outbound flight to Chicago from 1 airline.

  • How long is the flight from Sioux City to Chicago?

    For as low as $224, United Airlines can have you in Chicago from Sioux City in 1h 52m. The distance between Sioux City and Chicago is about 435 mi. All flights are typically nonstop.

  • What is the cheapest airline to fly from Sioux City to Chicago round-trip?

    Our cheapest airline available from Sioux City to Chicago is United Airlines. Our recent data shows that you can find tickets from as low as $224 on this airline.

  • What are the cheapest flights from Sioux City to Chicago?

    Looking at all options, your cheapest flight can be booked for $175. While the most popular route (Sioux City Sioux Gateway - Chicago O'Hare Intl) can be booked for $264 on average, our data indicates $565 when flying from Sioux City to Chicago.

  • Can I find deals for flights from Sioux City to Chicago that include hotel bookings?

    Yes. In addition to deals on Sioux City to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Chicago.

  • Can I find deals for business class flights from Sioux City to Chicago?

    Yes. Cheapflights offers flight deals from Sioux City to Chicago 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?

Book flights to Chicago if you plan to visit one of these locations
Benton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Sioux City to Chicago

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$224Average$397FlexibilityNo cancel feeOn-time69%

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