HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$168+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — DEN
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 July 27, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 8/21

6:43 pm-7:37 pm

Nonstop1h 54m

Denver Intl

Sun 8/23

8:15 am-10:55 am

Nonstop1h 40m

$234

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 9/11

6:35 pm-7:29 pm

Nonstop1h 54m

Denver Intl

Fri 9/18

9:05 pm-11:43 pm

Nonstop1h 38m

$234

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 9/4

6:43 pm-7:37 pm

Nonstop1h 54m

Denver Intl

Tue 9/8

9:05 pm-11:43 pm

Nonstop1h 38m

$234

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 9/4

6:43 pm-7:37 pm

Nonstop1h 54m

Denver Intl

Fri 9/11

9:05 pm-11:43 pm

Nonstop1h 38m

$234

Sioux CityNashville

SUX - BNA

SUXBNA

Sioux City Sioux Gateway

Tue 8/25

9:05 am-3:57 pm

1 stop6h 52m

Nashville Intl

Tue 9/1

11:18 am-5:53 pm

1 stop6h 35m

$292

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Fri 8/14

6:43 pm-11:59 pm

1 stop5h 16m

Dallas/Fort Worth

Mon 8/17

5:45 am-10:55 am

1 stop5h 10m

$302

Sioux CityNashville

SUX - BNA

SUXBNA

Sioux City Sioux Gateway

Mon 8/24

8:10 am-6:47 pm

2 stops10h 37m

Nashville Intl

Mon 8/31

5:27 pm-11:43 pm

1 stop6h 16m

$316

Sioux CityLos Angeles

SUX - LAX

SUXLAX

Sioux City Sioux Gateway

Tue 9/1

9:05 am-3:30 pm

1 stop8h 25m

Los Angeles

Tue 9/8

2:29 pm-11:43 pm

1 stop7h 14m

$324

Sioux CityNew York

SUX - LGA

SUXLGA

Sioux City Sioux Gateway

Fri 8/21

11:30 am-9:40 pm

1 stop9h 10m

New York LaGuardia

Fri 8/28

2:55 pm-11:43 pm

2 stops9h 48m

$324

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 9/27

8:35 am-10:29 am

Nonstop1h 54m

Chicago O'Hare Intl

Tue 9/29

4:00 pm-5:53 pm

Nonstop1h 53m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 45 resultsSorted by cheapest first
1
2
3
...
5

Compare providers for flights from Sioux City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux City in July
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Among all the travel providers offering deals on flights from Sioux City, FlightHub has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as FlightHub about >95% of the time. This is based on searches for flights from Sioux City made on Cheapflights over the past month and is updated monthly.
  • Most trusted provider: In terms of trustworthiness, Cheapflights users rate FlightHub the highest out of those offering flight deals from Sioux City. FlightHub has a user feedback rating of 3 out of 3 stars (3 being the best) and has received the most positive sentiment from Cheapflights users searching for flights from Sioux City. This info is gathered from Cheapflights searches over the past month.

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, March is the cheapest month in which you can book a flight from Sioux City (average of $214). Flying from Sioux City in February will prove the most costly (average of $360). 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: Denver.

United Airlines
United Airlines
From $204
ANA
ANA
From $1,497

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), Denver (11 flights per day), and Paducah (7 flights per day).

Denver Intl
Denver Intl
From $167
Chicago
Chicago
From $175

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

The cheapest city to fly to from Sioux City is Denver Intl, with prices starting at $167. Explore other affordable destinations below.

Denver Intl
Denver Intl
From $167
Chicago
Chicago
From $175

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 July 27, 2026. 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
10,041 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 July 27, 2026.

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

    Users have flown out of Sioux City for as low as $167 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,498 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 $1,888

  • 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?

    March is currently the cheapest month to fly from Sioux City. At this moment in time February 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.