AUS - SUX

$320 Find Cheap Flights from Austin to Sioux City

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Sioux City departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Sioux City, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Austin to Sioux City (AUS-SUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Sioux City

Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
9:44 am - 11:00 pmAUS-SUX
13h 16m2 stops
United Airlines Logo
6:51 pm - 11:59 pmSUX-AUS
5h 08m1 stop
$320United Airlines
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Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
5:45 am - 10:39 amAUS-SUX
4h 54m1 stop
United Airlines Logo
6:00 am - 11:07 amSUX-AUS
5h 07m1 stop
$334United Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
5:45 am - 10:39 amAUS-SUX
4h 54m1 stop
United Airlines Logo
12:45 pm - 10:34 pmSUX-AUS
9h 49m2 stops
$344United Airlines
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Thu, Sep 25 - Sat, Sep 27
United Airlines Logo
3:51 pm - 11:00 pmAUS-SUX
7h 09m1 stop
United Airlines Logo
7:50 am - 4:04 pmSUX-AUS
8h 14m1 stop
$354United Airlines
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Mon, Nov 10 - Thu, Nov 13
United Airlines Logo
5:12 pm - 10:59 pmAUS-SUX
5h 47m1 stop
United Airlines Logo
6:46 pm - 11:59 pmSUX-AUS
5h 13m1 stop
$360United Airlines
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Wed, Sep 24 - Sat, Sep 27
United Airlines Logo
2:15 pm - 10:57 pmAUS-SUX
8h 42m2 stops
United Airlines Logo
7:50 am - 2:03 pmSUX-AUS
6h 13m1 stop
$362United Airlines
Find Deal
Thu, Sep 25 - Sat, Sep 27
United Airlines Logo
3:51 pm - 11:00 pmAUS-SUX
7h 09m1 stop
United Airlines Logo
7:50 am - 3:18 pmSUX-AUS
7h 28m2 stops
$366United Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 16
United Airlines Logo
12:17 pm - 11:00 pmAUS-SUX
10h 43m2 stops
United Airlines Logo
6:51 pm - 11:59 pmSUX-AUS
5h 08m1 stop
$370United Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27
United Airlines Logo
2:15 pm - 10:57 pmAUS-SUX
8h 42m2 stops
United Airlines Logo
7:50 am - 3:18 pmSUX-AUS
7h 28m2 stops
$373United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
11:06 am - 6:14 pmAUS-SUX
7h 08m1 stop
United Airlines Logo
6:51 pm - 11:29 amSUX-AUS
16h 38m1 stop
$391United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$320
United Airlines
Wed 10/1Sun 10/5
AUS - SUX • 2 stops
Cheapest one-way
$365
United Airlines
Fri 9/19
AUS - SUX • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux City!
Booking Insights

Good to know

Cheapest flight$320
Flight from Austin to Sioux City

When to book flights from Austin to Sioux City

Are your dates flexible? Find out the best times to travel from Austin to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Austin to Sioux City

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

    In the last 3 days, the lowest price for a flight from Austin to Sioux City was $365 for a one-way ticket and $320 for a round-trip.

  • Do I need a passport to fly between Austin and Sioux City?

    No, a passport isn't needed to fly from Austin to Sioux City. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Austin to Sioux City?

    Austin airport is called Austin Bergstrom and the only airport in Sioux City is Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Austin to Sioux City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Austin to Sioux City?

    Star Alliance is the only airline alliance operating flights between Austin and Sioux City.

  • How does KAYAK find such low prices on flights from Austin to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Austin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Austin with another airline. Booking your flights between Austin and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Austin to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Austin to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8937 reviews
7.7Boarding
7.1Entertainment
8.1Crew
6.6Food
7.3Comfort
Airline reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

6.0 GoodKaren Andrea, Sep 2025IAH - MCO
Read more United Airlines reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Overall it was good. I missed my connection but I was put on another flight.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

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

Information on your arrival and departure airports

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