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Cheap flights from Sydney to Buenos Aires from $1,131

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 26/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Buenos Aires

Enter your travel dates to find the best prices.

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

Mon 11/509:10
SYD
-
EZE
2 stops36h 40m
British Airways
Mon 18/520:35
EZE
-
SYD
2 stops45h 30m
British Airways
Deal found 13/4$1,899
Fri 5/609:10
SYD
-
EZE
2 stops38h 55m
British Airways
Thu 18/621:05
EZE
-
SYD
2 stops45h 00m
British Airways
Deal found 12/4$1,900
Mon 11/509:05
SYD
-
EZE
1 stop20h 25m
Multiple Airlines
Thu 14/502:15
EZE
-
SYD
1 stop23h 55m
Multiple Airlines
Deal found 16/4$1,906
Fri 24/709:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Thu 13/823:30
EZE
-
SYD
2 stops42h 35m
American Airlines
Deal found 14/4$1,934
Fri 1/509:10
SYD
-
EZE
2 stops59h 05m
American Airlines
Fri 22/522:05
EZE
-
SYD
2 stops44h 00m
American Airlines
Deal found 12/4$1,935
Fri 30/1011:15
SYD
-
EZE
2 stops36h 30m
American Airlines
Sat 14/1122:30
EZE
-
SYD
2 stops44h 30m
American Airlines
Deal found 14/4$1,948
Thu 7/509:10
SYD
-
EZE
2 stops36h 40m
American Airlines
Tue 2/622:35
EZE
-
SYD
2 stops43h 30m
American Airlines
Deal found 13/4$1,949
Fri 12/609:10
SYD
-
EZE
2 stops38h 55m
American Airlines
Sun 19/721:50
EZE
-
SYD
2 stops44h 15m
American Airlines
Deal found 14/4$1,952
Wed 20/509:10
SYD
-
EZE
2 stops38h 55m
American Airlines
Sun 24/520:35
EZE
-
SYD
2 stops45h 30m
American Airlines
Deal found 15/4$1,956
Sat 30/509:10
SYD
-
EZE
2 stops58h 55m
American Airlines
Sun 21/621:05
EZE
-
SYD
2 stops45h 00m
American Airlines
Deal found 12/4$1,971
Sun 3/511:45
SYD
-
AEP
1 stop16h 05m
LATAM Airlines
Sat 16/522:30
AEP
-
SYD
1 stop19h 20m
LATAM Airlines
Deal found 13/4$2,086
Sat 30/507:00
SYD
-
AEP
2 stops20h 50m
Multiple Airlines
Sat 1/822:30
AEP
-
SYD
2 stops22h 15m
Multiple Airlines
Deal found 14/4$2,115

Find flight deals from Sydney to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Buenos Aires (BUE). 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 April 2026.

Round-trip from

$1,899

One-way from

$1,131

Popular in

December

Cheapest in

June

Average price

$2,312
British Airways
  • British Airways
  • 11/5-18/5
  • 4 total stops
  • 82h 10m total
  • Sydney to Buenos Aires
Search Deals
26/7
  • 26/7
  • 1 total stop
  • 19h 01m total
  • Sydney to Buenos Aires
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($354 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($106 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Buenos Aires 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 April 2026.
Use the filters below to find and compare flights from Sydney to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 1/9

09:10-08:50

2 stops36h 40m

Buenos Aires Ministro Pistarini

Tue 22/9

22:20-07:05

2 stops43h 45m

$1,962

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Thu 30/7

09:10-16:45

1 stop20h 35m

Buenos Aires Ministro Pistarini

Mon 17/8

02:15-15:10

1 stop23h 55m

$2,278

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 15/5

11:45-18:25

1 stop19h 40m

Buenos Aires Jorge Newbery

Sat 23/5

22:30-11:55

2 stops24h 25m

$2,341

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 2/7

11:45-21:30

1 stop22h 45m

Buenos Aires Jorge Newbery

Wed 15/7

22:30-06:50

1 stop19h 20m

$2,365

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Mon 1/6

08:25-14:50

2 stops19h 25m

Buenos Aires Jorge Newbery

Fri 31/7

22:30-09:45

2 stops22h 15m

$2,406

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 7/8

07:25-14:50

2 stops20h 25m

Buenos Aires Jorge Newbery

Tue 11/8

08:40-06:50

2 stops33h 10m

$2,411

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Tue 1/9

11:45-21:30

1 stop22h 45m

Buenos Aires Jorge Newbery

Tue 22/9

21:00-13:25

2 stops27h 25m

$2,462

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 1/9

11:45-18:21

1 stop19h 36m

Buenos Aires Ministro Pistarini

Tue 22/9

19:21-10:45

2 stops26h 24m

$2,530

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Tue 1/9

11:45-21:30

1 stop22h 45m

Buenos Aires Jorge Newbery

Tue 22/9

22:30-06:50

1 stop19h 20m

$2,532

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Wed 7/10

22:05-22:25

3 stops62h 20m

Buenos Aires Ministro Pistarini

Wed 18/11

23:55-19:50

3 stops53h 55m

$2,779

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Sydney to Buenos Aires

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

How far ahead should I book a flight from Sydney to Buenos Aires?

Use this chart to determine the optimal time to book a return flight from Sydney to Buenos Aires. Price data was last updated on 10 April 2026.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sydney to Buenos Aires?

Currently, January is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $962). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,789). 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 Buenos Aires?

What’s the top stopover airport for flights from Sydney to Buenos Aires?

Share of one-stop return flights from Sydney to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Santiago (SCL) – chosen by Cheapflights users on 95% of one-stop itineraries from Sydney to Buenos Aires on Cheapflights.

What’s the cheapest stopover airport for flights from Sydney to Buenos Aires?

Average return fare for one-stop flights from Sydney to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Santiago (SCL) is the most affordable one-stop option, with an average return flight price of $2,114.

What’s the fastest stopover option from Sydney to Buenos Aires?

Shortest average travel time for one-stop one-way flights from Sydney to Buenos Aires, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Auckland (AKL) have the shortest average one-way travel time for one-stop routes: 18h 13m.

Which airport typically offers the quickest stopover for flights from Sydney to Buenos Aires?

Average stopover duration for one-stop one-way flights from Sydney to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Auckland (AKL) offer the fastest connection on this route, with an average stopover time of 3h 02m.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated 17 April 2026.
Read through reviews of airlines operating flights from Sydney to Buenos Aires, such as LATAM Airlines,United Airlines, andChina Eastern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.
LATAM Airlines
7.4
Good
1,907 reviews
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.
United Airlines
7.4
Good
9,596 reviews
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.
China Eastern
7.2
Good
202 reviews
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.
American Airlines
7.1
Good
11,586 reviews
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.
Air Canada
7.1
Good
10,930 reviews
LATAM Airlines
7.4
Good
1,907 reviews
Check prices

Overall

7.4

Entertainment

7.0

Crew

8.0

Food

6.6

Comfort

7.3

Boarding

7.5

Reviews

1 / 20
8.0
Excellent

Victoria E,Mar 2026

SCL - JFK

I was charged $130 to check my baggage from Santiago Chile to New York. It was only one baggage checked and it wasn’t fully the standard size. And then to get hit with $130 was to me not favorable to the airlines. Because on most international travel, they allow one bag to be checked in. So in the future, I would have to think twice about booking Latam again other than that it’s a very good airline.

Related info for your journey

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

  • What airport do you fly from for flights from Sydney to Buenos Aires?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Buenos Aires. You should not have trouble finding flights to Buenos Aires from Kingsford Smith; the airport handles an average of 0 outbound flights to Buenos Aires per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sydney airport to Buenos Aires. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • How long is the flight from Sydney to Buenos Aires?

    Departing from Sydney to Buenos Aires will take you 20h 35m. There are 11759 km between Sydney and Buenos Aires. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Sydney to Buenos Aires round-trip?

    Currently priced at $1,682, LATAM Airlines will fly you from Sydney to Buenos Aires and back. In addition to LATAM Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $1,788. LATAM Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.

  • Where are the most common stopover locations when flying from Sydney to Buenos Aires?

    Of the flights from Sydney to Buenos Aires that have stopovers, most of them stop in Santiago.

  • Where are the least popular stopover locations for Sydney to Buenos Aires flights?

    Sydney to Buenos Aires flights have a stopover in Auckland the least frequently.

  • Can I find deals for flights from Sydney to Buenos Aires that include hotel bookings?

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

  • How can I find direct flights from Sydney to Buenos Aires?

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

  • Can I find deals for business class flights from Sydney to Buenos Aires?

    Yes. Cheapflights offers flight deals from Sydney to Buenos Aires 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 Buenos Aires?

    Currently, January is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $962). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,789). 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

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Fly from Sydney to Buenos Aires on these airlines

Choose from the following airlines for your flight from Sydney to Buenos Aires. Flights are based on user searches made on Cheapflights and were last updated on 17 April 2026.
LATAM Airlines flights from Sydney Kingsford Smith to Buenos Aires
United Airlines flights from Sydney Kingsford Smith to Buenos Aires

Top 2 airlines flying from Sydney to Buenos Aires

Discover the top 2 airlines that operate flights from Sydney to Buenos Aires. 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,682Average$2,288FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
American AirlinesCheapest$1,788Average$1,838FlexibilityNo cancel feeOn-time71%
Search American 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 Buenos Aires?

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 Buenos Aires from Sydney today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sydney to Buenos Aires?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Buenos Aires 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 Buenos Aires with no change fees?

Yes, we can. To see specific flights from Sydney to Buenos Aires with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sydney to Buenos Aires become cheaper?

Of course! You can now track prices for flights from Sydney to Buenos Aires and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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