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Buenos Aires

$827+ Cheap flights from Sydney (SYD) to Buenos Aires (BUE)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap flight deals from Sydney to Buenos Aires

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 April 17, 2026.

This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:10 am
SYD
-
EZE
2 stops36h 40m
American Airlines
Tue 6/210:35 pm
EZE
-
SYD
2 stops43h 30m
American Airlines
Deal found 4/13$1,398
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:10 am
SYD
-
EZE
2 stops34h 55m
American Airlines
Mon 6/2210:05 pm
EZE
-
SYD
2 stops44h 00m
American Airlines
Deal found 4/15$1,400
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:10 am
SYD
-
EZE
2 stops34h 55m
American Airlines
Thu 6/410:35 pm
EZE
-
SYD
2 stops43h 30m
American Airlines
Deal found 4/13$1,466
This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:45 am
SYD
-
AEP
1 stop16h 05m
LATAM Airlines
Sat 5/169:00 pm
AEP
-
SYD
1 stop20h 50m
LATAM Airlines
Deal found 4/16$1,541
This LATAM Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:45 am
SYD
-
AEP
1 stop19h 40m
LATAM Airlines
Tue 6/210:30 pm
AEP
-
SYD
1 stop19h 20m
LATAM Airlines
Deal found 4/13$1,542
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:45 am
SYD
-
AEP
1 stop16h 05m
LATAM Airlines
Tue 8/49:00 pm
AEP
-
SYD
1 stop20h 50m
LATAM Airlines
Deal found 4/16$1,591
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:10 am
SYD
-
EZE
2 stops36h 25m
American Airlines
Tue 8/49:00 pm
EZE
-
SYD
2 stops45h 05m
American Airlines
Deal found 4/16$1,604
This Gotogate deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:45 am
SYD
-
AEP
1 stop16h 05m
LATAM Airlines
Wed 5/137:20 pm
AEP
-
SYD
1 stop22h 30m
LATAM Airlines
Deal found 4/14$1,610
This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:45 am
SYD
-
EZE
1 stop19h 36m
LATAM Airlines
Sat 5/167:21 pm
EZE
-
SYD
1 stop22h 29m
LATAM Airlines
Deal found 4/16$1,616
This Booking.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:45 am
SYD
-
AEP
1 stop19h 40m
LATAM Airlines
Thu 6/49:00 pm
AEP
-
SYD
1 stop20h 50m
LATAM Airlines
Deal found 4/13$1,618
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:10 am
SYD
-
EZE
1 stop20h 35m
China Eastern
Mon 8/172:15 am
EZE
-
SYD
1 stop23h 55m
China Eastern
Deal found 4/14$1,634
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:55 am
SYD
-
EZE
1 stop20h 50m
Multiple Airlines
Mon 6/12:15 am
EZE
-
SYD
1 stop30h 35m
Multiple Airlines
Deal found 4/16$1,637

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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,398
(American Airlines)

One-way from

$827
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$1,658
Provider with most accurate pricing for Sydney Kingsford Smith-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Buenos Aires (BUE) flights.
Search Deals
From Sydney Kingsford Smith to Buenos Aires (BUE)
Search Deals
One-way flight from Sydney Kingsford Smith to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 17, 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 round-trip

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 5/28

7:00 am-6:25 pm

2 stops24h 25m

Buenos Aires Jorge Newbery

Thu 6/4

9:25 am-8:05 am

2 stops33h 40m

$1,676

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 5/7

11:45 am-7:40 am

2 stops32h 55m

Buenos Aires Jorge Newbery

Tue 6/2

10:30 pm-6:50 am

1 stop19h 20m

$1,693

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Tue 5/12

11:45 am-8:30 am

2 stops33h 45m

Buenos Aires Jorge Newbery

Tue 5/19

10:30 pm-10:45 am

2 stops23h 15m

$1,712

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sun 5/3

11:45 am-8:30 am

2 stops33h 45m

Buenos Aires Jorge Newbery

Sat 5/16

10:30 pm-9:30 am

2 stops22h 00m

$1,714

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 8/7

7:25 am-2:50 pm

2 stops20h 25m

Buenos Aires Jorge Newbery

Tue 8/11

8:40 am-6:50 am

2 stops33h 10m

$1,729
Quickest round-trip

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 5/7

10:00 pm-2:50 pm

2 stops29h 50m

Buenos Aires Jorge Newbery

Tue 6/2

10:30 pm-9:30 am

2 stops22h 00m

$1,740

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Sun 5/10

7:25 am-6:21 pm

2 stops23h 56m

Buenos Aires Ministro Pistarini

Sun 6/21

7:35 am-6:50 am

2 stops34h 15m

$1,745

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Tue 8/4

10:00 pm-2:50 pm

2 stops29h 50m

Buenos Aires Jorge Newbery

Thu 10/22

9:25 am-8:05 am

2 stops32h 40m

$1,805

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Tue 8/4

11:40 am-9:30 pm

2 stops22h 50m

Buenos Aires Jorge Newbery

Thu 10/22

9:25 am-8:05 am

2 stops32h 40m

$1,812

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 4/30

11:45 am-4:00 pm

2 stops41h 15m

Buenos Aires Jorge Newbery

Wed 5/13

10:30 pm-9:25 am

2 stops21h 55m

$1,874

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 39 resultsSorted by cheapest first
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Compare providers for flights from Sydney to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Buenos Aires in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Sydney to Buenos Aires. Price data was last updated on April 10, 2026.

The best time to book flights from Sydney to Buenos Aires is 74 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.

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 $690). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,283). 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 to fly round-trip from Sydney to Buenos Aires?

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 April 17, 2026.
Get a feel of what it's like to fly with LATAM Airlines from Sydney to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,907 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.5

Entertainment

7.0

Crew

8.0

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

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.5

Entertainment

7.0

Crew

8.0

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 0 airlines have flights from the Sydney airport to Buenos Aires. It is only a 4.6 mi journey to Kingsford Smith (SYD) from Sydney’s city center.

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

    Departing from Sydney to Buenos Aires will take you 32h 55m. The distance between Sydney and Buenos Aires is about 7326 mi. This flight may include one or multiple stops.

  • 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 vacation 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 $690). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,283). 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

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