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Cheap flights from Sydney to Buenos Aires from $1,017

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
14 Mrz — 21 Mrz1
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 12 Februar 2026.

Mi 25/313:00
SYD
-
AEP
2 stops44h 45m
Multiple Airlines
Mi 1/421:05
AEP
-
SYD
2 stops29h 45m
Multiple Airlines
Deal found 7/2$1,723
Di 3/312:20
SYD
-
EZE
1 stop16h 15m
Multiple Airlines
Do 30/407:30
EZE
-
SYD
1 stop21h 10m
Multiple Airlines
Deal found 9/2$1,723
Mi 18/217:30
SYD
-
AEP
2 stops35h 10m
Multiple Airlines
Mi 18/321:05
AEP
-
SYD
2 stops21h 55m
Multiple Airlines
Deal found 8/2$1,726
Do 26/308:45
SYD
-
EZE
3 stops32h 10m
LATAM Airlines
Do 2/419:21
EZE
-
SYD
1 stop21h 29m
LATAM Airlines
Deal found 9/2$1,730
Fr 20/312:20
SYD
-
EZE
1 stop16h 15m
Multiple Airlines
So 5/407:30
EZE
-
SYD
1 stop21h 10m
Multiple Airlines
Deal found 9/2$1,731
Fr 20/312:20
SYD
-
EZE
1 stop16h 15m
Multiple Airlines
Do 2/407:30
EZE
-
SYD
1 stop20h 10m
Multiple Airlines
Deal found 9/2$1,733
Di 18/808:55
SYD
-
AEP
2 stops23h 45m
LATAM Airlines
Di 8/921:05
AEP
-
SYD
1 stop20h 45m
LATAM Airlines
Deal found 9/2$1,734
Do 5/308:10
SYD
-
EZE
2 stops39h 05m
Multiple Airlines
Mo 6/419:21
EZE
-
SYD
2 stops24h 39m
Multiple Airlines
Deal found 8/2$1,735
Di 24/311:10
SYD
-
AEP
1 stop37h 20m
LATAM Airlines
Sa 18/417:05
AEP
-
SYD
2 stops48h 45m
LATAM Airlines
Deal found 9/2$1,738
Do 5/307:00
SYD
-
EZE
2 stops40h 15m
Multiple Airlines
Do 9/419:21
EZE
-
SYD
1 stop22h 29m
Multiple Airlines
Deal found 8/2$1,738
Do 5/307:00
SYD
-
EZE
2 stops25h 04m
Multiple Airlines
Mi 8/419:21
EZE
-
SYD
1 stop22h 29m
Multiple Airlines
Deal found 8/2$1,748
Do 20/808:25
SYD
-
EZE
3 stops31h 20m
LATAM Airlines
Fr 28/813:22
EZE
-
SYD
2 stops31h 08m
LATAM Airlines
Deal found 7/2$1,749

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 12 Februar 2026.

Round-trip from

$1,723

One-way from

$1,017

Popular in

December

Cheapest in

May

Average price

$2,149
25/3-1/4
  • 25/3-1/4
  • 4 total stops
  • 74h 30m total
  • Sydney to Buenos Aires
Search Deals
20/4
  • 20/4
  • 3 total stops
  • 54h 05m total
  • Sydney to Buenos Aires
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($282 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($99 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 12 Februar 2026.
Use the filters below to find and compare flights from Sydney to Buenos Aires that are best for you.

Fly from

Sydney

Fly to

Buenos Aires

Route

Depart

Return

Price

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Do 26/3

08:00-19:45

2 stops25h 45m

Buenos Aires Jorge Newbery

Do 2/4

08:40-06:50

1 stop32h 10m

$1,769

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Mi 11/3

06:00-18:04

2 stops26h 04m

Buenos Aires Ministro Pistarini

Mi 8/4

19:21-06:50

1 stop22h 29m

$1,804

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

So 17/5

06:25-14:50

2 stops21h 25m

Buenos Aires Jorge Newbery

So 7/6

21:05-08:20

2 stops46h 15m

$1,823

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Mi 11/3

09:00-19:45

2 stops24h 45m

Buenos Aires Jorge Newbery

Mi 8/4

15:45-06:50

1 stop26h 05m

$1,862

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Mo 1/6

11:45-21:00

1 stop22h 15m

Buenos Aires Ministro Pistarini

Fr 31/7

19:21-06:50

1 stop22h 29m

$1,891

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Di 10/3

17:30-18:04

2 stops38h 34m

Buenos Aires Ministro Pistarini

Di 28/4

11:30-06:50

1 stop30h 20m

$1,928

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sa 21/3

06:30-19:45

2 stops27h 15m

Buenos Aires Jorge Newbery

Di 21/4

15:45-06:50

1 stop26h 05m

$1,939

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Di 10/3

11:20-09:59

2 stops36h 39m

Buenos Aires Ministro Pistarini

Di 28/4

22:20-07:05

2 stops43h 45m

$1,952

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Mi 11/3

11:20-08:20

2 stops35h 00m

Buenos Aires Ministro Pistarini

Mi 8/4

20:40-07:05

2 stops45h 25m

$1,952

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Di 24/3

11:10-10:30

1 stop37h 20m

Buenos Aires Jorge Newbery

Di 28/4

21:05-06:50

1 stop20h 45m

$1,972

Flights are sorted by cheapest return flights first.

Deals found on 8/2

Showing 1-10 of 38 results
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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 6 February 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, May is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $1,412). Flying from Sydney to Buenos Aires in September is currently the most expensive (average of $2,271). 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 96% 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 $2,304.

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 12m.

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 03m.

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 12 Februar 2026.
Read through reviews of airlines operating flights from Sydney to Buenos Aires, such as LATAM Airlines, United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Food

6.7

Overall

7.5

Boarding

7.5

Crew

8.0

Entertainment

7.0

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
1,921 reviews
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Food

6.7

Overall

7.5

Boarding

7.5

Crew

8.0

Entertainment

7.0

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!
United Airlines
7.4
Good
9,282 reviews
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Food

6.7

Overall

7.5

Boarding

7.5

Crew

8.0

Entertainment

7.0

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!
American Airlines
7.2
Good
11,272 reviews
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Food

6.7

Overall

7.5

Boarding

7.5

Crew

8.0

Entertainment

7.0

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!
Air Canada
7.1
Good
10,709 reviews
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Food

6.7

Overall

7.5

Boarding

7.5

Crew

8.0

Entertainment

7.0

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 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 25h 45m. 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 $1,701, 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 $1,803. LATAM Airlines is 26% 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, May is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $1,412). Flying from Sydney to Buenos Aires in September is currently the most expensive (average of $2,271). 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 12 Februar 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 12 Februar 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,701Average$2,282FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
American AirlinesCheapest$1,803Average$1,853FlexibilityNo 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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