Find flights
When to book
Airlines
FAQs

Cheap flights from Sydney to Porto Alegre from $1,321

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — POA
1 sept. — 8 sept.1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Porto Alegre Salgado Filho are usually found in March or July, booked 87 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 août 2025.

Round-trip from

$2,307

One-way from

$1,321

Popular in

December

Cheapest in

March

Average price

$2,690
9/10-16/10
  • 9/10-16/10
  • 6 total stops
  • 94h 05m total
  • Sydney to Porto Alegre
Search Deals
LATAM Airlines
  • LATAM Airlines
  • 15/11
  • 1 total stop
  • 19h 50m total
  • Sydney to Porto Alegre
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($887 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($155 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Sydney to Porto Alegre

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 août 2025.

jeu. 9/1014:15SYD - POA
3 stops54h 10mMultiple Airlines
jeu. 16/1007:20POA - SYD
3 stops39h 55mMultiple Airlines
Deal found 25/8$2,307
jeu. 9/1012:50SYD - POA
3 stops34h 20mLATAM Airlines
jeu. 16/1019:20POA - SYD
2 stops46h 25mLATAM Airlines
Deal found 25/8$2,651
ven. 10/1013:20SYD - POA
1 stop20h 30mLATAM Airlines
ven. 17/1020:40POA - SYD
1 stop21h 05mLATAM Airlines
Deal found 26/8$2,784
sam. 15/1121:45SYD - POA
3 stops63h 40mMultiple Airlines
jeu. 15/109:35POA - SYD
3 stops44h 15mMultiple Airlines
Deal found 27/8$3,497
lun. 15/1206:00SYD - POA
2 stops25h 00mMultiple Airlines
lun. 15/1221:40POA - SYD
2 stops42h 40mMultiple Airlines
Deal found 26/8$3,639

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 août 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

jeu. 9/10

14:15-06:25

3 stops54h 10m

Porto Alegre Salgado Filho

jeu. 16/10

07:20-13:15

3 stops39h 55m

$2,307

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

jeu. 9/10

12:50-09:10

3 stops34h 20m

Porto Alegre Salgado Filho

jeu. 16/10

19:20-07:45

2 stops46h 25m

$2,651

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

ven. 10/10

13:20-19:50

1 stop20h 30m

Porto Alegre Salgado Filho

ven. 17/10

20:40-07:45

1 stop21h 05m

$2,784

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

dim. 25/1

15:50-19:20

2 stops41h 30m

Porto Alegre Salgado Filho

dim. 15/2

20:10-06:50

2 stops44h 40m

$2,834

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

dim. 25/1

11:20-14:35

3 stops41h 15m

Porto Alegre Salgado Filho

dim. 15/2

15:10-09:35

3 stops52h 25m

$2,844

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

sam. 15/11

11:10-17:00

1 stop19h 50m

$1,321

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

dim. 15/2

11:10-17:05

2 stops43h 55m

$1,475

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

ven. 12/12

08:45-17:00

2 stops22h 15m

$1,739

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

lun. 15/12

08:00-17:00

2 stops23h 00m

$1,936

SydneyPorto Alegre

SYD - POA

SYDPOA

Sydney Kingsford Smith

lun. 15/12

22:00-23:25

3 stops39h 25m

$1,996

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 11 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

How far ahead should I book a flight from Sydney to Porto Alegre?

Use this chart to determine the optimal time to book a return flight from Sydney to Porto Alegre. Price data was last updated on 22 August 2025.

The best time to book flights from Sydney to Porto Alegre is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 août 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
1,841 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.5

Crew

8.0

Reviews

1 / 20
4.0
Okay

Duane,June 2025

GRU - MAD

The flight crew were accommodating and friendly. However, it was annoying that I did not receive the seat I had reserved when I originally booked my flight and was not able to get much help before takeoff.
LATAM Airlines
7.5
Good
1,841 reviews
LATAM Airlines
7.5
Good
1,841 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.5

Crew

8.0

Reviews

1 / 20
4.0
Okay

Duane,June 2025

GRU - MAD

The flight crew were accommodating and friendly. However, it was annoying that I did not receive the seat I had reserved when I originally booked my flight and was not able to get much help before takeoff.

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.

  • How long is the flight from Sydney to Porto Alegre?

    Departing from Sydney to Porto Alegre will take you 34h 20m. Sydney and Porto Alegre are separated by a distance of 12519 km. Both multi-stop and direct flights can be found to your destination and back.

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

    According to our current data, LATAM Airlines ($1,988), offers the cheapest pricing from Sydney to Porto Alegre. LATAM Airlines is priced at 30% 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.

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 août 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,988Average$2,866FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.