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Cheap flights from Chicago to Sioux City from $161

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Sioux City departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:05 pm - 5:56 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$204United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$244United Airlines
Fri, Mar 27 - Mon, Mar 30
United Airlines Logo
4:05 pm - 5:56 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$326United Airlines
Mon, Apr 13 - Wed, Apr 15
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:30 pm - 9:09 am
SUX
-
ORD
14h 39m
2 stops
$342United Airlines
Thu, Mar 12 - Tue, Mar 17
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:53 pm - 2:40 pm
SUX
-
ORD
1h 47mnonstop
$355United Airlines
Thu, Mar 12 - Tue, Mar 17
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:32 pm - 9:37 am
SUX
-
ORD
15h 05m
1 stop
$368United Airlines
Fri, Mar 27 - Mon, Mar 30
United Airlines Logo
4:05 pm - 5:56 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:32 pm - 7:37 am
SUX
-
ORD
13h 05m
2 stops
$374United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:32 pm - 9:37 am
SUX
-
ORD
15h 05m
1 stop
$376United Airlines
Fri, Mar 27 - Mon, Mar 30
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:00 am - 8:33 pm
SUX
-
ORD
14h 33m
2 stops
$404United Airlines
Fri, Mar 27 - Mon, Mar 30
United Airlines Logo
3:50 pm - 5:41 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
6:30 pm - 9:09 am
SUX
-
ORD
14h 39m
2 stops
$407United Airlines
Thu, Mar 12 - Mon, Mar 16

United Airlines flights from Chicago to Sioux City

Our best United Airlines deals on Chicago to Sioux City flight tickets
United Airlines
Mar 6
ORD3:50 pmChicago O'Hare Intl
1h 51m
SUX5:41 pmSioux City Sioux Gateway
Mar 9
SUX12:53 pmSioux City Sioux Gateway
1h 47m
ORD2:40 pmChicago O'Hare Intl
$204
United Airlines
Mar 27
ORD3:50 pmChicago O'Hare Intl
1h 51m
SUX5:41 pmSioux City Sioux Gateway
Mar 30
SUX12:55 pmSioux City Sioux Gateway
1h 45m
ORD2:40 pmChicago O'Hare Intl
$244
United Airlines
Apr 13
ORD4:05 pmChicago O'Hare Intl
1h 51m
SUX5:56 pmSioux City Sioux Gateway
Apr 15
SUX12:55 pmSioux City Sioux Gateway
1h 45m
ORD2:40 pmChicago O'Hare Intl
$326

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 February 11, 2026.
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

Thu 4/16

4:05 pm-5:56 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Sun 4/19

12:55 pm-2:40 pm

Nonstop1h 45m

$204

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 3/27

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Mon 3/30

12:55 pm-2:40 pm

Nonstop1h 45m

$244

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Mon 4/13

4:05 pm-5:56 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Wed 4/15

12:55 pm-2:40 pm

Nonstop1h 45m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Tue 3/17

6:30 pm-9:09 am

2 stops14h 39m

$342

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Tue 3/17

12:53 pm-2:40 pm

Nonstop1h 47m

$355

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 3/27

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Mon 3/30

6:32 pm-9:37 am

1 stop15h 05m

$368

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 4/16

4:05 pm-5:56 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Sun 4/19

6:32 pm-7:37 am

2 stops13h 05m

$374

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 3/27

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Mon 3/30

6:32 pm-9:37 am

1 stop15h 05m

$376

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 3/27

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Mon 3/30

6:00 am-8:33 pm

2 stops14h 33m

$404

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

Sioux City Sioux Gateway

Mon 3/16

6:30 pm-9:09 am

2 stops14h 39m

$407

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 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 $244. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $476.

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

The cheapest time of day to fly to Sioux City is in the afternoon when flights can be purchased for as low as $244. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $416 on average. Flights to Sioux City from Chicago in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

$204

Fastest flight time

1h 51m

Direct flights

Mon, Tue, Fri, Sat and Sun

Airports in Sioux City

1 airport
The best flight deal from Chicago to Sioux City found on momondo in the last 72 hours is $204
The fastest flight from Chicago to Sioux City takes 1h 51m
Direct flights go from Chicago to Sioux City on Monday, Tuesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Sioux City. From Chicago there are direct flights to 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 51m.

  • 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 $204Free CancellationRating
7.4
9,276 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago to Sioux City

    United Airlines flight deals from Chicago to Sioux City start from $204 round-trip. Over the 3 United Airlines flights for this route in a normal week, average airfare is usually $405 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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