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Cheap flights from Chicago to Sioux City from $204

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Sioux City departing on 10/10. 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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Cheap round-trip flights

United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
$204United Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
United Airlines Logo
9:10 pm - 10:59 pmORD-SUX
1h 49mnonstop
United Airlines Logo
7:45 am - 9:32 amSUX-ORD
1h 47mnonstop
$244United Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
9:10 pm - 10:59 pmORD-SUX
1h 49mnonstop
United Airlines Logo
7:50 am - 9:45 amSUX-ORD
1h 55mnonstop
$245United Airlines
Find Deal
Tue, Dec 9 - Sun, Dec 21
United Airlines Logo
9:10 pm - 10:59 pmORD-SUX
1h 49mnonstop
United Airlines Logo
7:45 am - 9:32 amSUX-ORD
1h 47mnonstop
$265United Airlines
Find Deal
Sat, Nov 15 - Tue, Nov 18
United Airlines Logo
9:08 pm - 11:00 pmORD-SUX
1h 52mnonstop
United Airlines Logo
7:50 am - 9:41 amSUX-ORD
1h 51mnonstop
$326United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
United Airlines Logo
7:30 am - 6:08 pmORD-SUX
10h 38m2 stops
United Airlines Logo
7:45 am - 9:32 amSUX-ORD
1h 47mnonstop
$327United Airlines
Find Deal
Sat, Nov 8 - Sun, Nov 9
United Airlines Logo
6:10 pm - 6:10 pmORD-SUX
24h 00m2 stops
United Airlines Logo
7:50 am - 9:45 amSUX-ORD
1h 55mnonstop
$328United Airlines
Find Deal
Tue, Dec 9 - Sun, Dec 21
United Airlines Logo
9:10 pm - 10:59 pmORD-SUX
1h 49mnonstop
United Airlines Logo
6:46 pm - 7:41 amSUX-ORD
12h 55m2 stops
$347United Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
United Airlines Logo
7:25 am - 6:08 pmORD-SUX
10h 43m2 stops
United Airlines Logo
7:45 am - 9:32 amSUX-ORD
1h 47mnonstop
$350United Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
United Airlines Logo
8:03 pm - 6:10 pmORD-SUX
22h 07m2 stops
United Airlines Logo
7:50 am - 9:45 amSUX-ORD
1h 55mnonstop
$351United Airlines
Find Deal
Tue, Dec 9 - Sun, Dec 21

United Airlines flights from Chicago to Sioux City

Our best United Airlines deals on Chicago to Sioux City flight tickets
United Airlines
Oct 10
ORD9:08 pmChicago O'Hare Intl
1h 52m
SUX11:00 pmSioux City Sioux Gateway
Oct 13
SUX7:50 amSioux City Sioux Gateway
1h 51m
ORD9:41 amChicago O'Hare Intl
$204
Find similar
United Airlines
Nov 7
ORD9:10 pmChicago O'Hare Intl
1h 49m
SUX10:59 pmSioux City Sioux Gateway
Nov 9
SUX7:45 amSioux City Sioux Gateway
1h 47m
ORD9:32 amChicago O'Hare Intl
$244
Find similar
United Airlines
Dec 9
ORD9:10 pmChicago O'Hare Intl
1h 49m
SUX10:59 pmSioux City Sioux Gateway
Dec 21
SUX7:50 amSioux City Sioux Gateway
1h 55m
ORD9:45 amChicago O'Hare Intl
$245
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Chicago to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 10/10

9:08 pm-11:00 pm

Nonstop1h 52m

Sioux City Sioux Gateway

Mon 10/13

7:50 am-9:41 am

Nonstop1h 51m

$204

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 11/7

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Sun 11/9

7:45 am-9:32 am

Nonstop1h 47m

$244

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 12/9

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Sun 12/21

7:50 am-9:45 am

Nonstop1h 55m

$245

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Sat 11/15

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Tue 11/18

7:45 am-9:32 am

Nonstop1h 47m

$265

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 10/3

9:08 pm-11:00 pm

Nonstop1h 52m

Sioux City Sioux Gateway

Sun 10/5

7:50 am-9:41 am

Nonstop1h 51m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Sat 11/8

7:30 am-6:08 pm

2 stops10h 38m

Sioux City Sioux Gateway

Sun 11/9

7:45 am-9:32 am

Nonstop1h 47m

$327

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 12/9

6:10 pm-6:10 pm

2 stops24h 00m

Sioux City Sioux Gateway

Sun 12/21

7:50 am-9:45 am

Nonstop1h 55m

$328

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 11/7

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Tue 11/11

6:46 pm-7:41 am

2 stops12h 55m

$347

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 11/14

7:25 am-6:08 pm

2 stops10h 43m

Sioux City Sioux Gateway

Tue 11/18

7:45 am-9:32 am

Nonstop1h 47m

$350

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 12/9

8:03 pm-6:10 pm

2 stops22h 07m

Sioux City Sioux Gateway

Sun 12/21

7:50 am-9:45 am

Nonstop1h 55m

$351

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Sioux City from

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

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 Sioux City?

The cheapest month to fly to Sioux City from Chicago is in December. Flight prices, which tend to average around $188, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Sioux City, with average flight prices from Chicago averaging around $273.

What is the cheapest day to depart on your flight to Sioux City?

On average, the least expensive day to fly to Sioux City from Chicago is on a Friday. momondo users have found tickets for Friday departures for as low as $306. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $490.

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

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

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

There is only 1 cabin class available to choose from on Chicago to Sioux City Sioux Gateway flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When to book flights from Chicago to Sioux City

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

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

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

Best Price Found

$472

Fastest flight time

1h 49m

Direct flights

Every day

Airports in Sioux City

1 airport
The best flight deal from Chicago to Sioux City found on momondo in the last 72 hours is $472
The fastest flight from Chicago to Sioux City takes 1h 49m
Direct flights go from Chicago to Sioux City every day.
There is 1 airport near Sioux City: Sioux City Sioux Gateway (SUX)
Search flight deals

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

    There are 450.7 mi between Chicago and Sioux City Sioux Gateway. By plane, this route typically takes 1h 49m.

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

    Prices for flights from Chicago to Sioux City Sioux Gateway Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Sioux City Sioux Gateway Airport.

  • What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?

    The travel and health documents required for your trip to Sioux City Sioux Gateway Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sioux City Sioux Gateway Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Chicago to Sioux City

Compare and see reviews for airlines that fly from Chicago to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $214Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago to Sioux City

    United Airlines flight deals from Chicago to Sioux City start from $214 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $416 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Sioux City for you.

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

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

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

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

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

Price alerts on flights to Sioux City from Chicago 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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