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Cheap flights from Sioux City to Chicago from $166

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Chicago departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Sioux City to Chicago (SUX-CHI)

Cheap round-trip flights

United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$204United Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 25
United Airlines Logo
12:45 pm - 2:40 pmSUX-ORD
1h 55mnonstop
United Airlines Logo
3:35 pm - 5:32 pmORD-SUX
1h 57mnonstop
$265United Airlines
Find Deal
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$326United Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 15
United Airlines Logo
6:51 pm - 1:12 pmSUX-ORD
18h 21m2 stops
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$347United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
6:51 pm - 6:41 pmSUX-ORD
23h 50m2 stops
United Airlines Logo
9:10 pm - 10:59 pmORD-SUX
1h 49mnonstop
$349United Airlines
Find Deal
Sat, Oct 25 - Sun, Oct 26
United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$355United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
6:51 pm - 5:05 pmSUX-ORD
22h 14m1 stop
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$357United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
6:51 pm - 9:43 amSUX-ORD
14h 52m2 stops
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$360United Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 25
United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
United Airlines Logo
7:10 am - 6:14 pmORD-SUX
11h 04m1 stop
$368United Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 25
United Airlines Logo
6:51 pm - 7:43 amSUX-ORD
12h 52m2 stops
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
$370United Airlines
Find Deal
Thu, Oct 16 - Wed, Oct 22

United Airlines flights from Sioux City to Chicago

Our best United Airlines deals on Sioux City to Chicago flight tickets
United Airlines
Oct 1
SUX7:50 amSioux City Sioux Gateway
1h 51m
ORD9:41 amChicago O'Hare Intl
Oct 25
ORD9:08 pmChicago O'Hare Intl
1h 52m
SUX11:00 pmSioux City Sioux Gateway
$204
Find similar
United Airlines
Feb 28
SUX12:45 pmSioux City Sioux Gateway
1h 55m
ORD2:40 pmChicago O'Hare Intl
Mar 4
ORD3:35 pmChicago O'Hare Intl
1h 57m
SUX5:32 pmSioux City Sioux Gateway
$265
Find similar
United Airlines
Oct 14
SUX7:50 amSioux City Sioux Gateway
1h 51m
ORD9:41 amChicago O'Hare Intl
Oct 15
ORD9:08 pmChicago O'Hare Intl
1h 52m
SUX11:00 pmSioux City Sioux Gateway
$326
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to Chicago 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, momondo users made 832,500 searches. Data last updated September 9, 2025.
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

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Sat 10/25

9:08 pm-11:00 pm

Nonstop1h 52m

$204

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 2/28

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Wed 3/4

3:35 pm-5:32 pm

Nonstop1h 57m

$265

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 10/14

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Wed 10/15

9:08 pm-11:00 pm

Nonstop1h 52m

$326

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 10/3

6:51 pm-1:12 pm

2 stops18h 21m

Chicago O'Hare Intl

Mon 10/6

9:08 pm-11:00 pm

Nonstop1h 52m

$347

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 10/25

6:51 pm-6:41 pm

2 stops23h 50m

Chicago O'Hare Intl

Sun 10/26

9:10 pm-10:59 pm

Nonstop1h 49m

$349

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 10/3

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Mon 10/6

9:08 pm-11:00 pm

Nonstop1h 52m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 10/3

6:51 pm-5:05 pm

1 stop22h 14m

Chicago O'Hare Intl

Mon 10/6

9:08 pm-11:00 pm

Nonstop1h 52m

$357

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

6:51 pm-9:43 am

2 stops14h 52m

Chicago O'Hare Intl

Sat 10/25

9:08 pm-11:00 pm

Nonstop1h 52m

$360

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Sat 10/25

7:10 am-6:14 pm

1 stop11h 04m

$368

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 10/16

6:51 pm-7:43 am

2 stops12h 52m

Chicago O'Hare Intl

Wed 10/22

9:08 pm-11:00 pm

Nonstop1h 52m

$370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Sioux City to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of September is, on average, the cheapest month to fly to Chicago from Sioux City, with most prices found around $260. If you’re not able to fly to Chicago in September, then December is your next best option. Flight prices from Sioux City to Chicago during December average around $260.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $383. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Sioux City to Chicago for around $663.

What is the cheapest Sioux City Sioux Gateway to Chicago flight route?

Fly from Sioux City Sioux Gateway to Chicago O'Hare Intl for the best Sioux City Sioux Gateway - Chicago flight prices

What cabin class options are available on Sioux City Sioux Gateway to Chicago flights?

There are 2 cabin classes available to choose from on Sioux City Sioux Gateway to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sioux City to Chicago flights?

No. A direct flight is the cheapest option for a flight between Sioux City to Chicago.

When to book flights from Sioux City to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux City to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sioux City to Chicago (SUX to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux City to Chicago

Best Price Found

$300

Fastest flight time

1h 51m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun

Airports in Chicago

1 airport
The best one-way flight to Chicago from Sioux City in the past 72 hours is $300. The best round-trip flight deal from Sioux City to Chicago found on momondo in the last 72 hours is $348.
The fastest flight from Sioux City to Chicago takes 1h 51m
Direct flights go from Sioux City to Chicago on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)
Search flight deals

  • How far is Sioux City Sioux Gateway to Chicago by plane?

    Chicago is 450.7 mi away from Sioux City Sioux Gateway. A reasonable flight in good conditions will take 1h 47m.

  • When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Chicago?

    Prices for flights from Sioux City Sioux Gateway Airport to Chicago refresh daily.

  • How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to Chicago?

  • How old do you have to be to fly from Sioux City Sioux Gateway Airport to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux City Sioux Gateway Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Sioux City to Chicago?

  • What is the most popular airline from Sioux City to Chicago?

Best airlines flying from Sioux City to Chicago

Compare and see reviews for airlines that fly from Sioux City to Chicago with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $219Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights

  • United Airlines Flights From Sioux City to Chicago

    United Airlines is one of the most popular airlines flying from Sioux City to Chicago, operating 7 flights/week on average for this route. A good United Airlines flight deal for Sioux City to Chicago starts from $219 round-trip, up to an average price of $307. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Lansing
Portage
Schererville
Valparaiso
Crown Point
Munster
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to Chicago?

Finding the right flight to Chicago from Sioux City is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from Sioux City to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Sioux City with this policy.

How can momondo help me find flights from Sioux City to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from Sioux City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sioux City to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from Sioux City are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport