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Buenos Aires

$774+ 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Buenos Aires are usually found in May or July, booked 74 days in advance, depart on a Tuesday or Sunday and return on a Sunday

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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:50 amSYD - EZE
1 stop35h 30mUnited Airlines
Fri 1/3010:05 pmEZE - SYD
2 stops45h 10mUnited Airlines
Deal found 12/17$1,965
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:20 amSYD - EZE
2 stops34h 00mUnited Airlines
Sat 1/2411:55 pmEZE - SYD
2 stops64h 25mUnited Airlines
Deal found 12/16$1,970
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:50 amSYD - EZE
1 stop33h 30mUnited Airlines
Tue 1/1310:05 pmEZE - SYD
1 stop42h 55mUnited Airlines
Deal found 12/16$1,971
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:20 amSYD - EZE
2 stops36h 00mUnited Airlines
Mon 1/1911:55 pmEZE - SYD
2 stops43h 20mUnited Airlines
Deal found 12/17$2,069
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:20 amSYD - EZE
2 stops34h 00mUnited Airlines
Tue 1/2011:55 pmEZE - SYD
2 stops43h 20mUnited Airlines
Deal found 12/16$2,072
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:20 amSYD - EZE
2 stops60h 00mUnited Airlines
Fri 1/2310:05 pmEZE - SYD
2 stops69h 00mUnited Airlines
Deal found 12/17$2,093
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:50 amSYD - EZE
1 stop35h 30mUnited Airlines
Thu 1/811:55 pmEZE - SYD
2 stops43h 10mUnited Airlines
Deal found 12/16$2,314
This Qatar Airways deal was found by Cheapflights users on 12/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:40 pmSYD - AEP
2 stops50h 00mQatar Airways
Fri 1/232:55 pmAEP - SYD
2 stops49h 55mQatar Airways
Deal found 12/15$2,673
This Gotogate deal was found by Cheapflights users on 12/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:10 amSYD - AEP
1 stop22h 30mLATAM Airlines
Fri 1/309:05 pmAEP - SYD
1 stop19h 10mLATAM Airlines
Deal found 12/15$2,769
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amSYD - AEP
2 stops22h 40mMultiple Airlines
Fri 1/309:05 pmAEP - SYD
1 stop19h 10mMultiple Airlines
Deal found 12/15$2,771
This Qatar Airways deal was found by Cheapflights users on 12/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:50 pmSYD - AEP
2 stops36h 10mQatar Airways
Fri 1/232:55 pmAEP - SYD
2 stops49h 55mQatar Airways
Deal found 12/17$2,841
This Qantas Airways deal was found by Cheapflights users on 12/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:20 pmSYD - AEP
1 stop16h 20mMultiple Airlines
Tue 1/138:50 amAEP - SYD
1 stop18h 50mMultiple Airlines
Deal found 12/16$2,853

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,519
(Expedia)

One-way from

$774
(LATAM Airlines)

Popular in

December

Cheapest in

May

Average price

$2,184
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. 9% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Fri 3/20

11:10 am-7:40 pm

1 stop22h 30m

Buenos Aires Jorge Newbery

Thu 4/2

9:05 pm-10:15 am

2 stops23h 10m

$1,562

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sun 2/15

7:25 am-7:40 pm

2 stops26h 15m

Buenos Aires Jorge Newbery

Sat 3/7

11:30 am-6:15 am

1 stop28h 45m

$1,588

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sun 2/15

11:10 am-7:40 pm

1 stop22h 30m

Buenos Aires Jorge Newbery

Sat 3/7

8:50 am-6:15 am

1 stop31h 25m

$1,629

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sat 1/31

11:10 am-7:40 pm

1 stop22h 30m

Buenos Aires Jorge Newbery

Sat 2/7

9:05 pm-6:15 am

1 stop19h 10m

$1,631

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Fri 3/20

10:20 am-3:10 pm

3 stops42h 50m

Buenos Aires Ministro Pistarini

Thu 4/2

4:30 pm-8:20 am

3 stops49h 50m

$1,637

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Fri 3/20

8:30 am-6:43 pm

2 stops24h 13m

Buenos Aires Ministro Pistarini

Thu 4/2

7:21 pm-3:50 pm

2 stops30h 29m

$1,648

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 3/20

11:10 am-7:40 pm

1 stop22h 30m

Buenos Aires Jorge Newbery

Thu 4/2

3:40 pm-6:50 am

1 stop25h 10m

$1,714

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Wed 2/11

8:00 am-6:43 pm

2 stops24h 43m

Buenos Aires Ministro Pistarini

Wed 2/18

2:45 pm-9:00 am

3 stops28h 15m

$1,753

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Tue 3/10

12:20 pm-2:35 pm

1 stop16h 15m

Buenos Aires Ministro Pistarini

Tue 4/28

7:30 am-5:40 pm

1 stop21h 10m

$1,827

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Sun 2/8

9:15 pm-10:25 pm

3 stops63h 10m

Buenos Aires Ministro Pistarini

Thu 2/19

11:55 pm-7:20 pm

3 stops53h 25m

$1,833

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 29 results
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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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Buenos Aires flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 12, 2025.

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, May is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $1,028). Flying from Sydney to Buenos Aires in September is currently the most expensive (average of $1,602). 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 December 18, 2025.
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
7.5
Good
1,893 reviews

Boarding

7.6

Comfort

7.3

Food

6.7

Overall

7.5

Entertainment

7.0

Crew

8.0

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
1,893 reviews
LATAM Airlines
7.5
Good
1,893 reviews

Boarding

7.6

Comfort

7.3

Food

6.7

Overall

7.5

Entertainment

7.0

Crew

8.0

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 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 22h 30m. 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, May is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $1,028). Flying from Sydney to Buenos Aires in September is currently the most expensive (average of $1,602). 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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