What airlines fly to Sioux City?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Sioux City from Chicago according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 3 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

How many flights depart from Chicago to Sioux City on average per day?

The number of flights available between Chicago and Sioux City is 1 per day as of November 2025. The most frequent departure time is 9:00PM, with 100% of daily flights leaving in the evening.

How many flights depart from Chicago to Sioux City on average per week?

As of November 2025, there are 7 flights per week flying from Chicago to Sioux City. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

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?

As of November 2025, there is 1 operator available to choose from 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.

$193 Cheap Flights from Chicago to Sioux City in 2025/26

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9:10 pm - 10:59 pmORD-SUX

1h 49mnonstop

7:50 am - 9:37 amSUX-ORD

1h 47mnonstop

$204United Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

9:10 pm - 10:59 pmORD-SUX

1h 49mnonstop

7:50 am - 9:45 amSUX-ORD

1h 55mnonstop

$243United Airlines

Find Deal

Tue, Dec 9 - Sun, Dec 21

3:35 pm - 5:28 pmORD-SUX

1h 53mnonstop

12:45 pm - 2:40 pmSUX-ORD

1h 55mnonstop

$265United Airlines

Find Deal

Fri, Feb 6 - Sun, Feb 8

9:10 pm - 10:59 pmORD-SUX

1h 49mnonstop

7:50 am - 9:45 amSUX-ORD

1h 55mnonstop

$284United Airlines

Find Deal

Tue, Dec 9 - Sun, Dec 21

9:18 pm - 11:15 pmORD-SUX

1h 57mnonstop

12:45 pm - 2:40 pmSUX-ORD

1h 55mnonstop

$326United Airlines

Find Deal

Mon, Jan 5 - Thu, Jan 8

6:10 pm - 6:10 pmORD-SUX

24h 00m2 stops

7:50 am - 9:45 amSUX-ORD

1h 55mnonstop

$336United Airlines

Find Deal

Tue, Dec 9 - Sun, Dec 21

9:10 pm - 10:59 pmORD-SUX

1h 49mnonstop

6:52 pm - 9:41 amSUX-ORD

14h 49m2 stops

$337United Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

7:10 am - 6:10 pmORD-SUX

11h 00m1 stop

7:50 am - 9:45 amSUX-ORD

1h 55mnonstop

$356United Airlines

Find Deal

Tue, Dec 9 - Sun, Dec 21

9:10 pm - 10:59 pmORD-SUX

1h 49mnonstop

6:52 pm - 9:40 amSUX-ORD

14h 48m1 stop

$357United Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

6:10 pm - 6:10 pmORD-SUX

24h 00m2 stops

7:50 am - 9:45 amSUX-ORD

1h 55mnonstop

$377United 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

Dec 5

ORD9:10 pmChicago O'Hare Intl

1h 49m

SUX10:59 pmSioux City Sioux Gateway

Dec 8

SUX7:50 amSioux City Sioux Gateway

1h 47m

ORD9:37 amChicago O'Hare Intl

$204

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

$243

Find similar

United Airlines

Feb 6

ORD3:35 pmChicago O'Hare Intl

1h 53m

SUX5:28 pmSioux City Sioux Gateway

Feb 8

SUX12:45 pmSioux City Sioux Gateway

1h 55m

ORD2:40 pmChicago O'Hare Intl

$265

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 12/5

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Mon 12/8

7:50 am-9:37 am

Nonstop1h 47m

$204

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

$243

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 2/6

3:35 pm-5:28 pm

Nonstop1h 53m

Sioux City Sioux Gateway

Sun 2/8

12:45 pm-2:40 pm

Nonstop1h 55m

$265

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

$284

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Mon 1/5

9:18 pm-11:15 pm

Nonstop1h 57m

Sioux City Sioux Gateway

Thu 1/8

12:45 pm-2:40 pm

Nonstop1h 55m

$326

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

$336

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 12/5

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Mon 12/8

6:52 pm-9:41 am

2 stops14h 49m

$337

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 12/9

7:10 am-6:10 pm

1 stop11h 00m

Sioux City Sioux Gateway

Sun 12/21

7:50 am-9:45 am

Nonstop1h 55m

$356

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 12/5

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Mon 12/8

6:52 pm-9:40 am

1 stop14h 48m

$357

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

$377

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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

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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 $244.

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 $267. 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 time of day to depart on your flight to Sioux City?

The cheapest time of day to fly to Sioux City is in the morning when flights can be purchased for as low as $354. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $390 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 49m
Direct flights	Wed, Thu, Fri and Sat
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 49m

Direct flights go from Chicago to Sioux City on Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

There is 1 airport near Sioux City: Sioux City Sioux Gateway (SUX)

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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?
As of November 2025, there is 1 operator available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago to Sioux City is Canadair (Bombardier) Regional Jet (66.67% of total bookings). The next most popular plane models are Airbus A319 (5.56%), Embraer 175 (Enhanced Winglets) (5.56%), and Boeing 737-700 Passenger/BBJ1 (winglets) (5.56%).
What is the most popular airline from Chicago to Sioux City?
Based on momondo bookings for flights between Chicago and Sioux City, the leading airline is United Airlines, making up 100% of the total bookings.

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 Airlines	PriceFrom $204	Free Cancellation	Rating 7.4 8,997 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 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.

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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.

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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 12/5. 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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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?

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

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

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.

What airlines fly to Sioux City?

How many flights depart from Chicago to Sioux City on average per day?

The number of flights available between Chicago and Sioux City is 1 per day as of November 2025. The most frequent departure time is 9:00PM, with 100% of daily flights leaving in the evening.

How many flights depart from Chicago to Sioux City on average per week?

As of November 2025, there are 7 flights per week flying from Chicago to Sioux City. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

When to book flights from Chicago to Sioux City

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

Fastest flight time

Direct flights

Airports in Sioux City

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

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

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?

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

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

United Airlines Flights From Chicago to Sioux City

Traveling to a place near Sioux City?

Why use momondo?

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

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

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

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

An easier way to manage your Sioux City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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