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Sioux City

$304+ Cheap flights from Austin to Sioux City (AUS - SUX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SUX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Austin to Sioux City

Cheapest flights from Austin to Sioux City
Explore the most affordable flight options available from Austin to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:20 pmAUS - SUX
1 stop5h 55mUnited Airlines
Sun 1/116:43 pmSUX - AUS
1 stop5h 13mUnited Airlines
Deal found 12/11$359
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/191:52 pmAUS - SUX
2 stops9h 23mUnited Airlines
Sun 1/116:43 pmSUX - AUS
1 stop5h 13mUnited Airlines
Deal found 12/11$369
This deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:20 pmAUS - SUX
1 stop5h 55mUnited Airlines
Sun 1/116:00 amSUX - AUS
1 stop6h 56mUnited Airlines
Deal found 12/11$398
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:45 amAUS - SUX
1 stop16h 30mUnited Airlines
Sun 1/47:50 amSUX - AUS
1 stop28h 13mUnited Airlines
Deal found 12/10$884

Find flight deals from Austin to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$304
(United Airlines)
Provider with most accurate pricing for Austin Bergstrom-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Sioux City Sioux Gateway flights.
Search Deals
From Austin Bergstrom to Sioux City Sioux Gateway
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin 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, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Austin to Sioux City that are best for you.

Fly from

Austin

Fly to

Sioux City

Route

Depart

Return

Price

AustinSioux City

AUS - SUX

AUSSUX

Austin Bergstrom

Thu 1/8

4:51 pm-11:47 pm

1 stop6h 56m

Sioux City Sioux Gateway

Mon 1/12

6:00 am-11:23 am

1 stop5h 23m

$304

AustinSioux City

AUS - SUX

AUSSUX

Austin Bergstrom

Sun 12/21

5:20 pm-11:15 pm

1 stop5h 55m

Sioux City Sioux Gateway

Sun 1/11

6:43 pm-11:56 pm

1 stop5h 13m

$359

AustinSioux City

AUS - SUX

AUSSUX

Austin Bergstrom

Fri 12/19

1:52 pm-11:15 pm

2 stops9h 23m

Sioux City Sioux Gateway

Sun 1/11

6:43 pm-11:56 pm

1 stop5h 13m

$369

AustinSioux City

AUS - SUX

AUSSUX

Austin Bergstrom

Tue 12/23

11:59 am-6:13 pm

1 stop6h 14m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Austin to 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 Austin to Sioux City in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 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: When it comes to deals on Austin-Sioux City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Sioux City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Austin-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Sioux City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Austin to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Austin 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.

Cheapflights Insights

Everything you need to know about your flight from Austin to Sioux City

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

Currently, August is the cheapest month in which you can book a flight from Austin to Sioux City (average of $129). Flying from Austin to Sioux City in December is currently the most expensive (average of $258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with United Airlines from Austin to Sioux City by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

Find useful and relevant information for your journey from Austin to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Sioux City?

    Departing from Austin to Sioux City will take you 6h 56m. The distance between Austin and Sioux City is about 846 mi.

  • What is the cheapest airline to fly from Austin to Sioux City round-trip?

    Currently priced at $233, United Airlines will fly you from Austin to Sioux City and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from Austin to Sioux City that include hotel bookings?

    Yes. In addition to deals on Austin to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Sioux City.

  • Can I find deals for business class flights from Austin to Sioux City?

    Yes. Cheapflights offers flight deals from Austin to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Austin to Sioux City (average of $129). Flying from Austin to Sioux City in December is currently the most expensive (average of $258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Austin to Sioux City

Discover the top airline that operate flights from Austin to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$233Average$338FlexibilityNo cancel feeOn-time69%

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