What is the cheapest airline that flies from Sioux City Sioux Gateway to Chicago?

United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to Chicago

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

As of February 2026, 6 flights take off from Sioux City and land in Chicago each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

What airlines fly to Chicago?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Chicago from Sioux City 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 Chicago. Keep in mind that there are 3 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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?

As of February 2026, there is 1 operator available to choose from 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.

$166 Cheap Flights from Sioux City to Chicago in 2026

Q: What is the typical price of a round-trip flight between Sioux City and Chicago?

Prices are currently low for flights on this route. Typical prices usually range from $309 to $385. The lowest price recently found on this route was $204.

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Find the cheapest flights from Sioux City to Chicago

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Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:53 pm - 2:40 pm

SUX

ORD

1h 47mnonstop

4:05 pm - 5:56 pm

ORD

SUX

1h 51mnonstop

$204United Airlines

Fri, Mar 27 - Sun, Mar 29

12:53 pm - 2:40 pm

SUX

ORD

1h 47mnonstop

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$244United Airlines

Fri, Mar 6 - Thu, Mar 12

12:45 pm - 2:40 pm

SUX

ORD

1h 55mnonstop

3:35 pm - 5:32 pm

ORD

SUX

1h 57mnonstop

$265United Airlines

Sat, Jun 27 - Wed, Aug 19

1:00 pm - 2:47 pm

SUX

ORD

1h 47mnonstop

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$326United Airlines

Sat, Feb 21 - Wed, Feb 25

6:30 pm - 9:38 am

SUX

ORD

15h 08m

1 stop

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$350United Airlines

Fri, Mar 6 - Thu, Mar 12

12:53 pm - 2:40 pm

SUX

ORD

1h 47mnonstop

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$355United Airlines

Fri, Mar 20 - Sun, Mar 22

12:53 pm - 2:40 pm

SUX

ORD

1h 47mnonstop

8:10 pm - 10:45 am

ORD

SUX

14h 35m

2 stops

$374United Airlines

Fri, Mar 20 - Tue, Mar 24

1:00 pm - 2:47 pm

SUX

ORD

1h 47mnonstop

9:15 pm - 10:45 am

ORD

SUX

13h 30m

1 stop

$376United Airlines

Fri, Feb 27 - Mon, Mar 2

6:30 pm - 9:31 am

SUX

ORD

15h 01m

2 stops

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$390United Airlines

Fri, Mar 6 - Thu, Mar 12

6:00 am - 11:19 pm

SUX

ORD

17h 19m

1 stop

3:35 pm - 5:32 pm

ORD

SUX

1h 57mnonstop

$391United Airlines

Sat, Jun 27 - Wed, Aug 19

United Airlines flights from Sioux City to Chicago

Our best United Airlines deals on Sioux City to Chicago flight tickets

United Airlines

Mar 27

SUX12:53 pmSioux City Sioux Gateway

1h 47m

ORD2:40 pmChicago O'Hare Intl

Mar 29

ORD4:05 pmChicago O'Hare Intl

1h 51m

SUX5:56 pmSioux City Sioux Gateway

$204

United Airlines

Mar 7

SUX12:53 pmSioux City Sioux Gateway

1h 47m

ORD2:40 pmChicago O'Hare Intl

Mar 14

ORD3:50 pmChicago O'Hare Intl

1h 51m

SUX5:41 pmSioux City Sioux Gateway

$212

United Airlines

Mar 6

SUX12:53 pmSioux City Sioux Gateway

1h 47m

ORD2:40 pmChicago O'Hare Intl

Mar 12

ORD3:50 pmChicago O'Hare Intl

1h 51m

SUX5:41 pmSioux City Sioux Gateway

$244

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/27

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Sun 3/29

4:05 pm-5:56 pm

Nonstop1h 51m

$204

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/6

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 6/27

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Wed 8/19

3:35 pm-5:32 pm

Nonstop1h 57m

$265

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 2/21

1:00 pm-2:47 pm

Nonstop1h 47m

Chicago O'Hare Intl

Wed 2/25

3:50 pm-5:41 pm

Nonstop1h 51m

$326

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/6

6:30 pm-9:38 am

1 stop15h 08m

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

$350

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/20

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Sun 3/22

3:50 pm-5:41 pm

Nonstop1h 51m

$355

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/20

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Tue 3/24

8:10 pm-10:45 am

2 stops14h 35m

$374

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 2/27

1:00 pm-2:47 pm

Nonstop1h 47m

Chicago O'Hare Intl

Mon 3/2

9:15 pm-10:45 am

1 stop13h 30m

$376

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/6

6:30 pm-9:31 am

2 stops15h 01m

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

$390

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 6/27

6:00 am-11:19 pm

1 stop17h 19m

Chicago O'Hare Intl

Wed 8/19

3:35 pm-5:32 pm

Nonstop1h 57m

$391

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Sioux City and Chicago?

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 Friday when prices can be found for as low as $354. 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 time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is at noon. Flights from Sioux City to Chicago during this time can be as low as $424. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $451.

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	$299
Fastest flight time	1h 45m
Direct flights	Mon, Fri, Sat and Sun
Airports in Chicago	3 airports

The best one-way flight to Chicago from Sioux City in the past 72 hours is $299. The best round-trip flight deal from Sioux City to Chicago found on momondo in the last 72 hours is $393.

The fastest flight from Sioux City to Chicago takes 1h 45m

Direct flights go from Sioux City to Chicago on Monday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.

There are 3 airports in Chicago. From Sioux City there are direct flights to 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 45m.
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?
As of February 2026, there is 1 operator available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Sioux City to Chicago is Canadair (Bombardier) Regional Jet, representing 36.84% of all bookings. The subsequent popular models are Boeing 737-800 at 10.53%, Boeing 717-200 at 7.89%, and Airbus A319 at 7.89%.
What is the most popular airline from Sioux City to Chicago?
momondo data reveals that the most frequently booked airline on the route from Sioux City to Chicago is United Airlines, representing 100% of all bookings.

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 Airlines	PriceFrom $265	Free Cancellation	Rating 7.4 9,257 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 6 flights/week on average for this route. A good United Airlines flight deal for Sioux City to Chicago starts from $265 round-trip, up to an average price of $389. Our users have rated United Airlines at 7.4/10.

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Munster

Crown Point

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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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 3/15. 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 Sioux City to Chicago

What is the typical price of a round-trip flight between Sioux City and Chicago?

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

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

Our most recent data shows that the best time of day to fly to Chicago is at noon. Flights from Sioux City to Chicago during this time can be as low as $424. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $451.

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.

What is the cheapest airline that flies from Sioux City Sioux Gateway to Chicago?

United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to Chicago

What airlines fly to Chicago?

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

As of February 2026, 6 flights take off from Sioux City and land in Chicago each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

When to book flights from Sioux City to Chicago

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

Fastest flight time

Direct flights

Airports in Chicago

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

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

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?

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

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

United Airlines Flights From Sioux City to Chicago

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago 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

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favorite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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