App
Customer Support
NZD
Find Bookings
Trip.com
>
Cheap Flights
>
United States
>
Texas
>
Austin
>
Flights from Sioux City to Austin
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Flights from Sioux City to Austin Starting at NZD 259

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • SUX17:15
        21h 59m
        1 stop
        AUS15:14
        Mon, Jan 27|Sioux City - Austin|United Airlines
        NZD 259NZD 602
        56% OFF
        56% OFF
        NZD 602NZD 259

        Choose United Airlines flights from Sioux City to Austin. The one-way connecting flight with United Airlines departs from Sioux Gateway Airport on Mon, Jan 27, arriving at Austin–Bergstrom International Airport. One-way Prices start from NZD 259 including taxes and charges.

      • SUX17:15
        26h 8m
        1 stop
        AUS19:23
        Wed, Jan 15|Sioux City - Austin|United Airlines
        NZD 291NZD 602
        52% OFF
        52% OFF
        NZD 602NZD 291

        Choose United Airlines flights from Sioux City to Austin. The one-way connecting flight with United Airlines departs from Sioux Gateway Airport on Wed, Jan 15, arriving at Austin–Bergstrom International Airport. One-way Prices start from NZD 291 including taxes and charges.

      • SUX17:15
        6h 43m
        1 stop
        AUS23:58
        Wed, Jan 29|Sioux City - Austin|United Airlines
        NZD 363NZD 602
        40% OFF
        40% OFF
        NZD 602NZD 363

        Choose United Airlines flights from Sioux City to Austin. The one-way connecting flight with United Airlines departs from Sioux Gateway Airport on Wed, Jan 29, arriving at Austin–Bergstrom International Airport. One-way Prices start from NZD 363 including taxes and charges.

      • SUX17:15
        26h 8m
        1 stop
        AUS19:23
        Sun, Jan 26|Sioux City - Austin|United Airlines
        NZD 383
        NZD 383

        Choose United Airlines flights from Sioux City to Austin. The one-way connecting flight with United Airlines departs from Sioux Gateway Airport on Sun, Jan 26, arriving at Austin–Bergstrom International Airport. One-way Prices start from NZD 383 including taxes and charges.

      • SUX17:15
        22h 51m
        1 stop
        AUS16:06
        Thu, Jan 9|Sioux City - Austin|United Airlines
        NZD 500
        NZD 500

        Choose United Airlines flights from Sioux City to Austin. The one-way connecting flight with United Airlines departs from Sioux Gateway Airport on Thu, Jan 9, arriving at Austin–Bergstrom International Airport. One-way Prices start from NZD 500 including taxes and charges.

      • SUX01:00 pm
        3h 5m
        Nonstop
        AUS02:00 pm
        Wed, Jan 15|Sioux City - Austin|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Sioux City to Austin

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Sioux City to Austin

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

United Airlines
From NZD 259

Find more flights and airlines

Alternative Routes from Sioux City to Austin

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Sioux City to Austin.

  • Cheapest
    United Airlines
    SUX
    17:15
    21h 59m
    1 transfer
    AUS
    15:14
    Sioux Gateway Airport - Austin–Bergstrom International Airport
    Mon, Jan 27United Airlines
    NZD 259
  • United Airlines
    SUX
    17:15
    21h 59m
    1 transfer
    AUS
    15:14
    Sioux Gateway Airport - Austin–Bergstrom International Airport
    Mon, Jan 27United Airlines
    NZD 259
    Find More Flights

FAQ

  • When are flight tickets from Sioux City (SUX) to Austin (AUS) the cheapest?

    Airlines adjust prices for flights from Sioux City to Austin based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Sioux City (SUX) to Austin (AUS) cost?

    According to Trip.com's data, the lowest price is around NZD 839.

How to find a cheap flight from Sioux City to Austin

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Sioux City to Austin. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Sioux City to Austin

Cheapest nonstop flight priceNZD 259
Off-season for travelJanuary
Peak season for travelDecember
Flight distance1,351.5 km
Popular airlineUnited Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.