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Cheap flights from Porto Alegre to Sydney from $1,431

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SYD
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto Alegre to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Porto Alegre to Sydney
Explore the most affordable flight options available from Porto Alegre to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2026.

Mon 14/919:05 -
1 stop22h 45m
Mon 21/911:45 -
1 stop19h 30m
Deal found 15/8$2,561
Sun 13/919:05 -
1 stop22h 45m
Sun 20/911:45 -
1 stop19h 30m
Deal found 14/8$2,685
Tue 25/819:05 -
1 stop22h 45m
Mon 9/1108:45 -
2 stops22h 05m
Deal found 13/8$2,687
Tue 15/919:05 -
1 stop22h 45m
Wed 21/1012:45 -
2 stops24h 40m
Deal found 13/8$2,689

Find flight deals from Porto Alegre to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Sydney (SYD). 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 17 August 2026.

Round-trip from

$2,530

One-way from

$1,431

Popular in

December

Cheapest in

June

Average price

$2,809
Turkish Airlines
  • Turkish Airlines
  • 10/2-4/3
  • 6 total stops
  • 102h 35m total
  • Porto Alegre to Sydney
Search Deals
14/9
  • 14/9
  • 3 total stops
  • 41h 10m total
  • Porto Alegre to Sydney
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($155 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($52 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto Alegre to Sydney 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 17 August 2026.
Use the filters below to find and compare flights from Porto Alegre to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Wed 10/2

19:35-19:25

3 stops57h 50m

Sydney Kingsford Smith

Thu 4/3

21:35-21:45

3 stops62h 10m

$2,543

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Thu 24/12

03:30-16:30

2 stops23h 00m

Sydney Kingsford Smith

Thu 14/1

10:35-19:15

2 stops22h 40m

$3,056

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Tue 3/11

03:30-16:30

2 stops23h 00m

Sydney Kingsford Smith

Tue 12/1

10:35-19:15

2 stops22h 40m

$3,115

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Sun 27/12

17:40-16:30

1 stop32h 50m

Sydney Kingsford Smith

Sun 31/1

10:35-16:50

1 stop20h 15m

$3,166

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Fri 1/1

20:05-06:50

2 stops44h 45m

Sydney Kingsford Smith

Mon 1/2

22:10-08:30

2 stops48h 20m

$3,234
Fastest return journey

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Thu 24/12

03:30-16:30

2 stops23h 00m

Sydney Kingsford Smith

Sat 16/1

10:35-16:50

1 stop20h 15m

$3,474
Cheapest one-way

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Mon 14/9

01:20-07:30

3 stops41h 10m

$1,431
Fastest single journey

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Tue 15/9

19:05-06:50

1 stop22h 45m

$1,673

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Tue 1/9

20:05-06:30

2 stops45h 25m

$1,837

Porto AlegreSydney

POA Porto Alegre Salgado Filho - SYD Sydney Kingsford Smith

POASYD

Porto Alegre Salgado Filho

Wed 28/10

11:45-19:25

3 stops41h 40m

$1,936

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Porto Alegre to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Porto Alegre 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 Porto Alegre to Sydney

What is the cheapest month to book a flight from Porto Alegre to Sydney?

Currently, June is the cheapest month in which you can book a flight from Porto Alegre to Sydney (average of $2,088). Flying from Porto Alegre to Sydney in December is currently the most expensive (average of $3,130). 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.

How much does it cost for a return flight from Porto Alegre to Sydney?

Airfare is below average for this route at the moment.

Porto Alegre to Sydney flights typically cost between $2,551 and $3,279 in February.
The cheapest return price found within the last 5 days was $2,530 on Turkish Airlines (10 Feb–4 Mar).

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Sydney. 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 Porto Alegre to Sydney?

    For as low as $2,543, Turkish Airlines can have you in Sydney from Porto Alegre in 57h 50m. There are 12519 km between Porto Alegre and Sydney.

  • Can I find deals for flights from Porto Alegre to Sydney that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to Sydney?

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

  • Can I find deals for business class flights from Porto Alegre to Sydney?

    Yes. Cheapflights offers flight deals from Porto Alegre to Sydney 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 Porto Alegre to Sydney?

    Currently, June is the cheapest month in which you can book a flight from Porto Alegre to Sydney (average of $2,088). Flying from Porto Alegre to Sydney in December is currently the most expensive (average of $3,130). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Lithgow
Cronulla
Randwick
Terrigal
Leura
Bondi Beach
Coogee

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Can Cheapflights find flights from Porto Alegre to Sydney with no change fees?

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