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Cheap flights from Sydney to Buenos Aires from $1,129

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
10 Aug — 17 Aug1
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 11 July 2026.

Wed 30/918:20
SYD
-
EZE
1 stop35h 25m
Multiple Airlines
Thu 19/1102:00
EZE
-
SYD
1 stop20h 50m
Multiple Airlines
Deal found 9/7$1,835
Wed 30/909:10
SYD
-
EZE
2 stops36h 20m
American Airlines
Wed 18/1123:35
EZE
-
SYD
2 stops43h 25m
American Airlines
Deal found 9/7$1,962
Wed 30/909:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Fri 20/1122:50
EZE
-
SYD
2 stops44h 10m
American Airlines
Deal found 8/7$1,965
Fri 2/1009:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Mon 23/1123:35
EZE
-
SYD
2 stops43h 25m
American Airlines
Deal found 6/7$1,966
Tue 18/809:10
SYD
-
EZE
2 stops57h 50m
American Airlines
Tue 8/920:50
EZE
-
SYD
2 stops45h 15m
American Airlines
Deal found 11/7$1,968
Thu 20/809:10
SYD
-
EZE
2 stops36h 35m
American Airlines
Thu 27/822:30
EZE
-
SYD
2 stops43h 35m
American Airlines
Deal found 6/7$1,982
Tue 11/809:10
SYD
-
EZE
2 stops36h 35m
American Airlines
Tue 18/822:30
EZE
-
SYD
2 stops43h 35m
American Airlines
Deal found 9/7$1,983
Mon 5/1010:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Mon 23/1122:30
EZE
-
SYD
2 stops44h 30m
American Airlines
Deal found 8/7$2,058
Mon 5/1010:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Tue 24/1123:35
EZE
-
SYD
2 stops43h 25m
American Airlines
Deal found 8/7$2,061
Sun 23/809:10
SYD
-
EZE
2 stops35h 05m
American Airlines
Sun 30/822:30
EZE
-
SYD
2 stops43h 35m
American Airlines
Deal found 9/7$2,073
Wed 11/1111:20
SYD
-
EZE
3 stops65h 45m
Air Canada
Wed 2/1216:45
EZE
-
SYD
3 stops48h 10m
Air Canada
Deal found 9/7$2,081
Thu 20/811:45
SYD
-
AEP
1 stop16h 05m
LATAM Airlines
Sun 20/922:30
AEP
-
SYD
1 stop19h 20m
LATAM Airlines
Deal found 8/7$2,094

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 11 July 2026.

Round-trip from

$1,835

One-way from

$1,129

Popular in

December

Cheapest in

June

Average price

$2,307
30/9-19/11
  • 30/9-19/11
  • 2 total stops
  • 56h 15m total
  • Sydney to Buenos Aires
Search Deals
16/8
  • 16/8
  • 1 total stop
  • 36h 00m total
  • Sydney to Buenos Aires
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($291 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($97 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 11 July 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
Fastest return journey

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Mon 21/9

11:45-14:50

1 stop16h 05m

Buenos Aires Jorge Newbery

Sat 21/11

15:50-06:15

1 stop24h 25m

$2,428

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Wed 11/11

22:10-21:30

2 stops37h 20m

Buenos Aires Jorge Newbery

Wed 2/12

21:00-08:00

2 stops45h 00m

$2,504

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Sun 6/9

21:05-22:25

3 stops62h 20m

Buenos Aires Ministro Pistarini

Sun 20/9

23:55-19:10

3 stops54h 15m

$2,868

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Fri 2/10

09:30-08:00

2 stops35h 30m

Buenos Aires Ministro Pistarini

Tue 17/11

23:55-09:05

2 stops43h 10m

$2,914

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Sun 27/9

09:30-08:00

2 stops35h 30m

Buenos Aires Ministro Pistarini

Sat 21/11

23:55-07:00

1 stop41h 05m

$2,914

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 29/9

09:30-08:00

2 stops35h 30m

Buenos Aires Ministro Pistarini

Sat 21/11

23:55-07:00

1 stop41h 05m

$2,914

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 22/9

10:20-08:00

2 stops34h 40m

Buenos Aires Ministro Pistarini

Sun 22/11

23:55-07:00

1 stop41h 05m

$2,917

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Mon 21/9

09:30-08:00

2 stops35h 30m

Buenos Aires Ministro Pistarini

Tue 17/11

23:55-07:00

1 stop41h 05m

$2,917

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Sun 20/9

10:20-08:00

2 stops34h 40m

Buenos Aires Ministro Pistarini

Wed 18/11

22:05-07:00

1 stop42h 55m

$2,917

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 22/9

10:20-08:00

2 stops34h 40m

Buenos Aires Ministro Pistarini

Wed 18/11

22:05-07:00

1 stop42h 55m

$2,917

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 42 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

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 $992). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,845). 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 93% 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 $2,244.

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 Santiago (SCL) have the shortest average one-way travel time for one-stop routes: 17h 59m.

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 Santiago (SCL) offer the fastest connection on this route, with an average stopover time of 3h 12m.

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

Booking 71 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.

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 11 July 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
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
LATAM Airlines
7.4
Good
1,953 reviews
LATAM Airlines
7.4
Good
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
United Airlines
7.4
Good
9,978 reviews
LATAM Airlines
7.4
Good
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
China Eastern
7.3
Good
228 reviews
LATAM Airlines
7.4
Good
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
American Airlines
7.1
Good
11,805 reviews
LATAM Airlines
7.4
Good
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
Air Canada
7.1
Good
11,327 reviews
LATAM Airlines
7.4
Good
1,953 reviews
Check prices

Boarding

7.5

Comfort

7.3

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,June 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.

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 16h 05m. There are 11790 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 $1,736, 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 $1,845. LATAM Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $992). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,845). 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.

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 11 July 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 11 July 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,736Average$2,404FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
American AirlinesCheapest$1,845Average$1,897FlexibilityNo 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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