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$2,021+ Cheap flights from Austin (AUS) to Adelaide (ADL)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ADL
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Austin to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Adelaide (ADL). 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 septiembre 11, 2025.

Round-trip from

$2,021
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$1,481
From Austin Bergstrom to Adelaide
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Austin to Adelaide

Cheapest flights from Austin to Adelaide
Explore the most affordable flight options available from Austin to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 10/73:20 pmAUS - ADL
2 stops29h 00mUnited Airlines
mar. 10/147:40 amADL - AUS
2 stops32h 13mUnited Airlines
Deal found 9/10$2,021
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/78:40 amAUS - ADL
2 stops42h 00mAir Canada
mar. 10/146:00 amADL - AUS
3 stops44h 00mAir Canada
Deal found 9/10$2,411

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Adelaide 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Austin to Adelaide that are best for you.

Fly from

Austin

Fly to

Adelaide

Route

Depart

Return

Price

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

mar. 10/7

3:20 pm-11:50 am

2 stops29h 00m

Adelaide

mar. 10/14

7:40 am-12:23 am

2 stops32h 13m

$2,021

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

mar. 10/7

8:40 am-6:10 pm

2 stops42h 00m

Adelaide

mar. 10/14

6:00 am-10:30 am

3 stops44h 00m

$2,411

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Austin to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide 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 Adelaide

What is the cheapest time of day to fly from AUS to ADL?

Find hourly flight availability from Austin to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 86% on flights from Austin to Adelaide by exploring options for tickets at noon.

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. 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 Adelaide. Reviews last updated septiembre 11, 2025.
Read reviews from past customers who have flown Qantas Airways and United Airlines from Austin to Adelaide. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
905 reviews

Food

6.9

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.2

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
905 reviews
Qantas Airways
7.5
Good
905 reviews

Food

6.9

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.2

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,937 reviews
Qantas Airways
7.5
Good
905 reviews

Food

6.9

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.2

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

Find useful and relevant information for your journey from Austin to Adelaide. 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 Adelaide?

    A quick flight from Austin to Adelaide can take about 29h. United Airlines provides one of the quickest options available for as low as $2,021. There are 9184 mi between Austin and Adelaide. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Austin to Adelaide round-trip?

    Currently priced at $1,379, United Airlines will fly you from Austin to Adelaide and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Qantas Airways for as low as $1,481. United Airlines is 19% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Austin to Adelaide?

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

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

    Yes. Cheapflights offers flight deals from Austin to Adelaide 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 Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Austin to Adelaide (average of $1,214). Flying from Austin to Adelaide in December is currently the most expensive (average of $2,057). 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

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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Top 2 airlines flying from Austin to Adelaide

Discover the top 2 airlines that operate flights from Austin to Adelaide. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,379Average$1,611FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,481Average$1,626FlexibilityNo cancel feeOn-time74%

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