HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$154+ Cheap flights from Sioux City

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

What to know about flights from Sioux City

Discover essential information about flights departing from Sioux City, including flight schedules, destinations, airlines operating at the Sioux City airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated September 11, 2025.

Cheapest round-trip flight

$243

Cheapest airline

United Airlines

Good round-trip deal

$303 or less

Good one-way deal

$300 or less
The cheapest round-trip flight from Sioux City Sioux Gateway is currently to Chicago O'Hare Intl.
Search Deals
On average, United Airlines currently has the cheapest one-way flight from Sioux City Sioux Gateway (avg. price of $261).
Search Deals
Price to beat on a round-trip flight from Sioux City Sioux Gateway.
Search Deals
Price to beat on a one-way flight from Sioux City Sioux Gateway.
Search Deals

Find flights from Sioux City

Cheapest flights from Sioux City
Explore the most affordable flight options available from Sioux City. Find the lowest fares based on data from user searches, with prices last updated on September 11, 2025.

Wed 10/17:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Mon 10/279:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$204
Wed 10/226:51 pmSUX - LAS
1 stop5h 06mUnited Airlines
Sat 10/2512:29 pmLAS - SUX
1 stop8h 31mUnited Airlines
Deal found 9/10$244
Wed 10/17:50 amSUX - ORD
Nonstop1h 51mUnited Airlines
Tue 10/289:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$244
Wed 12/246:54 pmSUX - DEN
Nonstop1h 57mUnited Airlines
Fri 12/263:35 pmDEN - SUX
Nonstop1h 38mUnited Airlines
Deal found 9/10$254
Sat 11/16:46 pmSUX - LAX
1 stop6h 06mUnited Airlines
Sat 11/81:18 pmLAX - SUX
1 stop7h 41mUnited Airlines
Deal found 9/9$254
Tue 12/236:54 pmSUX - DEN
Nonstop1h 57mUnited Airlines
Sun 12/283:35 pmDEN - SUX
Nonstop1h 38mUnited Airlines
Deal found 9/9$262
Sat 11/227:45 amSUX - ORD
Nonstop1h 47mUnited Airlines
Sat 11/299:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Deal found 9/10$265
Thu 2/196:54 pmSUX - PHX
1 stop5h 05mUnited Airlines
Mon 2/236:00 amPHX - SUX
2 stops10h 32mUnited Airlines
Deal found 9/10$279
Tue 11/117:45 amSUX - LAX
1 stop9h 45mUnited Airlines
Sat 11/1511:02 amLAX - SUX
1 stop5h 06mUnited Airlines
Deal found 9/9$279
Mon 12/226:54 pmSUX - DEN
Nonstop1h 57mUnited Airlines
Tue 12/303:35 pmDEN - SUX
Nonstop1h 38mUnited Airlines
Deal found 9/9$302
Wed 9/246:48 pmSUX - LAX
1 stop5h 47mUnited Airlines
Sun 9/2811:00 amLAX - SUX
1 stop5h 14mUnited Airlines
Deal found 9/9$304
Fri 11/146:46 pmSUX - PHX
1 stop4h 54mUnited Airlines
Mon 11/176:25 amPHX - SUX
2 stops10h 43mUnited Airlines
Deal found 9/11$305

Find flights from Sioux City within your budget

 
Find flights departing from Sioux City that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on September 11, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

O'Hare Intl

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

Mon 10/27

9:10 pm-10:59 pm

Nonstop1h 49m

$204

Sioux CityLas Vegas

SUX - LAS

SUXLAS

Sioux City Sioux Gateway

Wed 10/22

6:51 pm-9:57 pm

1 stop5h 06m

Las Vegas Harry Reid Intl

Sat 10/25

12:29 pm-11:00 pm

1 stop8h 31m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 10/25

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Sun 10/26

9:10 pm-10:59 pm

Nonstop1h 49m

$244

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 10/1

7:50 am-9:41 am

Nonstop1h 51m

Chicago O'Hare Intl

Tue 10/28

9:10 pm-10:59 pm

Nonstop1h 49m

$244

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Thu 11/6

6:46 pm-7:34 pm

Nonstop1h 48m

Denver Intl

Mon 11/10

3:35 pm-6:08 pm

Nonstop1h 33m

$254

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 10/4

6:51 pm-7:40 pm

Nonstop1h 49m

Denver Intl

Sat 10/11

3:40 pm-6:14 pm

Nonstop1h 34m

$254

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Wed 10/8

6:51 pm-7:40 pm

Nonstop1h 49m

Denver Intl

Wed 10/15

3:40 pm-6:14 pm

Nonstop1h 34m

$262

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 11/22

7:45 am-9:32 am

Nonstop1h 47m

Chicago O'Hare Intl

Sat 11/29

9:10 pm-10:59 pm

Nonstop1h 49m

$265

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Thu 2/19

6:54 pm-10:59 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Mon 2/23

6:00 am-5:32 pm

2 stops10h 32m

$279

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 11/14

6:46 pm-7:34 pm

Nonstop1h 48m

Denver Intl

Mon 11/17

3:35 pm-6:08 pm

Nonstop1h 33m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 41 results
1
2
3
...
5

Best time to book a flight from Sioux City

Have a flexible travel schedule? Discover the best time to fly from Sioux City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Sioux City

Get recent, data-driven insights about flights from Sioux City including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Sioux City?

Currently, December is the cheapest month in which you can book a flight from Sioux City (average of $96). Flying from Sioux City in June will prove the most costly (average of $224). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Sioux City?

For flights departing from Sioux City check dates and pricing for the following: United Airlines. This airline departs to the following popular destinations: Chicago.

United Airlines
United Airlines
From $194

What are popular destinations to fly to from Sioux City?

Some of the most frequent flights departing from Sioux City everyday are: Chicago (14 flights per day), Sault Ste. Marie (7 flights per day), and Denver (7 flights per day).

Chicago
Chicago
From $197
Denver Intl
Denver Intl
From $214

What is the cheapest place to fly to from Sioux City?

The cheapest city to fly to from Sioux City is Chicago, with prices starting at $197. Explore other affordable destinations below.

Chicago
Chicago
From $197
Denver Intl
Denver Intl
From $214

Airline reviews for flights from Sioux City

Read reviews and ratings of airlines operating flights from Sioux City. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Sioux City travel. Please note that the reviews are sourced from user searches and were last updated on September 11, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.
Peruse reviews from past customers who have flown United Airlines from Sioux City to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from Sioux City. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated September 11, 2025.

  • What are the most popular destinations to fly to from Sioux City?

    This month, the top selected destinations from Sioux City are Denver, Dallas/Fort Worth Airport, Las Vegas. Throughout the year, Denver, Las Vegas, Chicago O'Hare Intl Airport are some of the top choices made by users flying from Sioux City.

  • What is the cheapest flight from Sioux City to anywhere?

    Users have flown out of Sioux City for as low as $197 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $536 to fly from Sioux City.

  • What is the cheapest premium economy flight from Sioux City?

    Options for some of the cheapest premium economy flights from Sioux City we have found on Cheapflights are as follows:
    Fly from Sioux City Sioux Gateway to Chicago O'Hare Intl Airport starting at $2,185

  • What is the cheapest first class flight from Sioux City?

    If you’re looking for a cheap first-class flight from Sioux City, consider Denver. Prices start at $773 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Sioux City?

    December is currently the cheapest month to fly from Sioux City. At this moment in time June is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

See more FAQs

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.