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Cheap flights from Austin to Adelaide from $1,690

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ADL
23 Mar — 30 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Austin to Adelaide

Enter your travel dates to find the best prices.

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 21 February 2026.

Thu 26/313:05
AUS
-
ADL
2 stops35h 35m
Singapore Airlines
Fri 10/419:00
ADL
-
AUS
2 stops55h 30m
Singapore Airlines
Deal found 18/2$1,690
Wed 1/414:24
AUS
-
ADL
2 stops27h 31m
Qantas Airways
Sat 11/411:50
ADL
-
AUS
2 stops41h 15m
Qantas Airways
Deal found 21/2$1,717
Fri 27/319:57
AUS
-
ADL
2 stops45h 58m
Qantas Airways
Wed 8/406:25
ADL
-
AUS
2 stops25h 54m
Qantas Airways
Deal found 18/2$1,778
Tue 24/319:57
AUS
-
ADL
2 stops33h 48m
Qantas Airways
Mon 6/406:00
ADL
-
AUS
2 stops32h 29m
Qantas Airways
Deal found 18/2$1,789
Wed 25/319:57
AUS
-
ADL
2 stops44h 48m
Qantas Airways
Mon 6/406:00
ADL
-
AUS
2 stops32h 29m
Qantas Airways
Deal found 18/2$1,802
Thu 26/319:57
AUS
-
ADL
2 stops28h 18m
Qantas Airways
Tue 7/413:25
ADL
-
AUS
2 stops24h 10m
Qantas Airways
Deal found 18/2$1,803
Tue 24/319:57
AUS
-
ADL
2 stops33h 48m
Qantas Airways
Wed 8/406:25
ADL
-
AUS
2 stops24h 27m
Qantas Airways
Deal found 18/2$1,808
Wed 25/319:57
AUS
-
ADL
2 stops44h 48m
Qantas Airways
Wed 8/413:25
ADL
-
AUS
2 stops24h 10m
Qantas Airways
Deal found 18/2$1,820
Sat 28/317:45
AUS
-
ADL
2 stops25h 50m
Qantas Airways
Wed 8/406:25
ADL
-
AUS
2 stops24h 27m
Qantas Airways
Deal found 18/2$1,822
Thu 26/319:57
AUS
-
ADL
2 stops26h 13m
Qantas Airways
Sun 5/406:00
ADL
-
AUS
2 stops32h 29m
Qantas Airways
Deal found 18/2$1,843
Fri 27/319:57
AUS
-
ADL
2 stops45h 58m
Qantas Airways
Mon 6/406:00
ADL
-
AUS
2 stops32h 29m
Qantas Airways
Deal found 18/2$1,857

Find 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 21 February 2026.

Round-trip from

$1,690

Popular in

April

Cheapest in

March

Average price

$1,506
Singapore Airlines
  • Singapore Airlines
  • 26/3-8/4
  • 4 total stops
  • 90h 05m total
  • Austin to Adelaide
Search Deals
High demand for flights, 9% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($142 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 21 February 2026.
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

Thu 26/3

13:05-16:10

2 stops35h 35m

Adelaide

Wed 8/4

20:00-12:00

2 stops54h 30m

$1,690

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Thu 9/4

15:05-09:25

2 stops27h 50m

Adelaide

Sun 19/4

06:00-14:35

2 stops23h 05m

$1,728

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Thu 9/4

12:55-15:55

3 stops36h 30m

Adelaide

Sun 19/4

19:35-12:00

3 stops54h 55m

$1,752

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Wed 1/4

18:30-11:05

2 stops25h 05m

Adelaide

Sat 11/4

06:00-17:49

2 stops26h 19m

$1,765

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Tue 24/3

19:57-21:15

2 stops33h 48m

Adelaide

Mon 6/4

06:00-23:59

2 stops32h 29m

$1,789

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Sun 29/3

14:24-11:55

2 stops30h 01m

Adelaide

Mon 6/4

06:00-23:59

2 stops32h 29m

$1,789

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Wed 25/3

19:57-08:15

2 stops44h 48m

Adelaide

Sun 5/4

06:00-23:59

2 stops32h 29m

$1,802

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Wed 25/3

19:57-08:15

2 stops44h 48m

Adelaide

Mon 6/4

06:00-23:59

2 stops32h 29m

$1,802

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Thu 26/3

19:57-15:45

2 stops28h 18m

Adelaide

Tue 7/4

13:25-23:05

2 stops24h 10m

$1,803

AustinAdelaide

AUS - ADL

AUSADL

Austin Bergstrom

Sun 29/3

14:24-11:55

2 stops30h 01m

Adelaide

Tue 7/4

08:50-23:05

2 stops28h 45m

$1,808

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 12 results
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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 return 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 21 February 2026.

A simple way to save on the total cost of your ticket is to fly from Austin to Adelaide in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.

How much does it cost for a return flight from Austin to Adelaide?

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?

    Singapore Airlines and Qantas Airways can get you from Austin to Adelaide in just under 27h 50m. Your travel time can differ by up to 7h 45m. The distance between Austin and Adelaide is about 14780 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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.

See more FAQs

Travelling to a place near Adelaide?

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

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How does Cheapflights help users find flights from Austin to Adelaide?

Deals for Austin to Adelaide flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Austin to Adelaide?

Cheapflights helps you find that perfect flight to Adelaide from Austin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Austin to Adelaide with no change fees?

Yes! Cheapflights helps users easily find flights from Austin to Adelaide with no change fees.

Can Cheapflights notify me if prices for flights from Austin to Adelaide become cheaper?

Yes, Cheapflights offers price alerts on Austin to Adelaide flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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