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Cheap flights from Sydney to Porto Alegre from $1,209

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — POA
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Porto Alegre (POA). 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 27 October 2025.

Round-trip from

$2,475

One-way from

$1,209

Popular in

December

Cheapest in

April

Average price

$2,998
LATAM Airlines
  • LATAM Airlines
  • 9/11-30/11
  • 3 total stops
  • 56h 10m total
  • Sydney to Porto Alegre
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15/3
  • 15/3
  • 2 total stops
  • 22h 30m total
  • Sydney to Porto Alegre
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($766 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($156 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Sydney to Porto Alegre

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Porto Alegre
Explore the most affordable flight options available from Sydney to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 October 2025.

Sun 9/1122:00SYD - POA
2 stops33h 55mMultiple Airlines
Sun 30/1118:00POA - SYD
1 stop22h 15mMultiple Airlines
Deal found 25/10$2,475
Thu 25/1208:45SYD - POA
3 stops29h 10mLATAM Airlines
Wed 31/1218:00POA - SYD
1 stop22h 15mLATAM Airlines
Deal found 27/10$3,224
Sun 9/1111:10SYD - POA
1 stop19h 50mLATAM Airlines
Sun 30/1118:00POA - SYD
1 stop22h 15mLATAM Airlines
Deal found 25/10$3,518
Wed 10/1213:05SYD - POA
3 stops34h 10mLATAM Airlines
Wed 17/1218:00POA - SYD
2 stops25h 45mLATAM Airlines
Deal found 25/10$3,805

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Porto Alegre 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 27 October 2025.
Use the filters below to find and compare flights from Sydney to Porto Alegre that are best for you.

Fly from

Sydney

Fly to

Porto Alegre

Route

Depart

Return

Price

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Sun 9/11

22:00-17:55

2 stops33h 55m

Porto Alegre Salgado Filho

Sun 30/11

18:00-06:15

1 stop22h 15m

$2,475

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Fri 27/3

10:20-16:10

3 stops43h 50m

Porto Alegre Salgado Filho

Sun 19/4

15:10-07:20

3 stops51h 10m

$2,521

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Tue 10/3

15:50-17:05

2 stops39h 15m

Porto Alegre Salgado Filho

Fri 10/4

06:40-06:15

2 stops58h 35m

$3,039

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Tue 10/3

11:10-23:15

2 stops26h 05m

Porto Alegre Salgado Filho

Fri 10/4

20:55-06:15

1 stop20h 20m

$3,045

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Wed 14/1

11:50-18:20

2 stops44h 30m

Porto Alegre Salgado Filho

Sat 31/1

16:55-07:00

2 stops48h 05m

$3,132

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Thu 15/1

11:50-14:40

2 stops40h 50m

Porto Alegre Salgado Filho

Mon 2/2

15:25-07:00

2 stops49h 35m

$3,132

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Wed 15/4

07:45-19:50

2 stops25h 05m

$1,209

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Wed 15/4

11:10-19:50

1 stop21h 40m

$1,286

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Sun 15/3

11:10-17:00

1 stop19h 50m

$1,286

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

Thu 15/1

11:20-09:55

3 stops60h 35m

$1,458

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 14 results
1
2

Best time to book a flight from Sydney to Porto Alegre

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

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

Currently, February is the cheapest month in which you can book a flight from Sydney to Porto Alegre (average of $1,753). Flying from Sydney to Porto Alegre in December is currently the most expensive (average of $3,027). 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 Sydney to Porto Alegre?

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. 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 Porto Alegre. Reviews last updated 27 October 2025.
Check out reviews from past customers who have flown with LATAM Airlines from Sydney to Porto Alegre to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.5

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
LATAM Airlines
7.5
Good
1,871 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Entertainment

7.0

Crew

8.0

Boarding

7.5

Overall

7.5

Food

6.7

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from Sydney to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Sydney to Porto Alegre round-trip?

    According to our current data, LATAM Airlines ($1,970), offers the cheapest pricing from Sydney to Porto Alegre. LATAM Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Sydney to Porto Alegre (average of $1,753). Flying from Sydney to Porto Alegre in December is currently the most expensive (average of $3,027). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Porto Alegre by adding a car hire and/or hotel booking to your travel itinerary.
Porto Alegre car hire
Porto Alegre Salgado Filho Airport car hire

Top airline flying from Sydney to Porto Alegre

Discover the top airline that operate flights from Sydney to Porto Alegre. 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 647,157 searches. Data last updated 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,970Average$2,844FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Porto Alegre?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto Alegre from Sydney today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sydney to Porto Alegre?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Porto Alegre by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Porto Alegre, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sydney to Porto Alegre become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Porto Alegre 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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