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Cheap flights from Sydney to Buenos Aires from $1,000

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 Wednesday and return on a Tuesday

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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 14 November 2025.

Thu 4/1213:05SYD - EZE
1 stop17h 50mMultiple Airlines
Mon 15/1202:00EZE - SYD
1 stop20h 40mMultiple Airlines
Deal found 11/11$1,654
Wed 3/1219:15SYD - EZE
1 stop35h 40mMultiple Airlines
Mon 2/302:00EZE - SYD
1 stop20h 40mMultiple Airlines
Deal found 11/11$1,933
Tue 25/1111:20SYD - EZE
2 stops35h 00mAmerican Airlines
Wed 10/1221:40EZE - SYD
2 stops45h 20mAmerican Airlines
Deal found 12/11$1,973
Wed 3/1211:20SYD - EZE
2 stops34h 45mAmerican Airlines
Tue 3/323:59EZE - SYD
2 stops43h 01mAmerican Airlines
Deal found 11/11$2,306
Sat 27/1211:10SYD - EZE
1 stop36h 05mLATAM Airlines
Mon 2/312:15EZE - SYD
1 stop28h 00mLATAM Airlines
Deal found 13/11$2,379
Fri 28/1111:10SYD - EZE
1 stop23h 45mLATAM Airlines
Tue 2/1212:15EZE - SYD
1 stop28h 00mLATAM Airlines
Deal found 12/11$2,380
Thu 11/1217:50SYD - EZE
2 stops52h 15mAmerican Airlines
Thu 29/122:25EZE - SYD
2 stops44h 35mAmerican Airlines
Deal found 13/11$2,408
Fri 28/1111:10SYD - AEP
1 stop17h 30mLATAM Airlines
Tue 2/1211:30AEP - SYD
2 stops31h 50mLATAM Airlines
Deal found 12/11$2,410
Wed 31/1217:50SYD - EZE
1 stop37h 05mMultiple Airlines
Thu 15/102:00EZE - SYD
1 stop20h 40mMultiple Airlines
Deal found 13/11$2,426
Sun 7/1211:10SYD - AEP
1 stop37h 20mLATAM Airlines
Tue 23/1211:30AEP - SYD
1 stop28h 45mLATAM Airlines
Deal found 13/11$2,445
Mon 29/1211:20SYD - EZE
2 stops59h 10mAmerican Airlines
Sun 1/323:59EZE - SYD
2 stops67h 01mAmerican Airlines
Deal found 13/11$2,458
Fri 5/1211:10SYD - AEP
1 stop17h 30mLATAM Airlines
Thu 11/1208:50AEP - SYD
1 stop31h 25mLATAM Airlines
Deal found 11/11$2,524

Cheap 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 14 November 2025.

Round-trip from

$1,654

One-way from

$1,000

Popular in

December

Cheapest in

May

Average price

$2,484
4/12-15/12
  • 4/12-15/12
  • 2 total stops
  • 38h 30m total
  • Sydney to Buenos Aires
Search Deals
19/1
  • 19/1
  • 1 total stop
  • 18h 45m total
  • Sydney to Buenos Aires
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($476 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($106 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 14 November 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 1/5

07:45-19:40

2 stops24h 55m

Buenos Aires Jorge Newbery

Thu 25/6

15:40-06:15

1 stop25h 35m

$2,248

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sat 21/3

11:10-14:40

1 stop17h 30m

Buenos Aires Jorge Newbery

Sat 25/4

21:05-09:30

2 stops23h 25m

$2,257

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sun 1/2

11:10-14:40

1 stop17h 30m

Buenos Aires Jorge Newbery

Mon 9/2

21:05-09:00

2 stops21h 55m

$2,332

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 6/2

08:00-14:40

2 stops20h 40m

Buenos Aires Jorge Newbery

Tue 10/3

15:40-06:15

1 stop24h 35m

$2,342

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Sun 3/5

11:10-16:05

2 stops41h 55m

Buenos Aires Jorge Newbery

Mon 22/6

21:05-06:15

1 stop20h 10m

$2,344

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Mon 26/1

11:10-19:40

1 stop22h 30m

Buenos Aires Jorge Newbery

Mon 9/3

11:30-09:00

2 stops31h 30m

$2,345

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

Fri 6/2

11:10-20:50

1 stop23h 40m

Buenos Aires Ministro Pistarini

Tue 10/3

19:43-09:20

2 stops23h 37m

$2,364

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Fri 6/2

08:00-19:40

2 stops25h 40m

Buenos Aires Jorge Newbery

Tue 10/3

15:40-09:20

2 stops27h 40m

$2,385

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Thu 19/2

08:30-19:40

2 stops25h 10m

Buenos Aires Jorge Newbery

Mon 9/3

21:05-09:20

2 stops22h 15m

$2,388

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

Mon 2/3

08:10-14:40

2 stops20h 30m

Buenos Aires Jorge Newbery

Sun 15/3

21:05-09:45

2 stops22h 40m

$2,443

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 36 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 7 November 2025.

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 $1,569). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $2,602). 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.

What is the cheapest time of day to fly from SYD to BUE?

Find hourly flight availability from Sydney to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

It’s optimal to fly from Sydney to Buenos Aires at midday. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the afternoon.

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 100% 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 $2,600.

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: 18h 49m.

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 Dubai (DXB) offer the fastest connection on this route, with an average stopover time of 2h 10m.

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 14 November 2025.
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
1,876 reviews
Check prices

Entertainment

7.0

Crew

8.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
1,876 reviews
LATAM Airlines
7.5
Good
1,876 reviews
Check prices

Entertainment

7.0

Crew

8.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
9,017 reviews
LATAM Airlines
7.5
Good
1,876 reviews
Check prices

Entertainment

7.0

Crew

8.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
11,051 reviews
LATAM Airlines
7.5
Good
1,876 reviews
Check prices

Entertainment

7.0

Crew

8.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
10,449 reviews
LATAM Airlines
7.5
Good
1,876 reviews
Check prices

Entertainment

7.0

Crew

8.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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 1 airline has 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 17h 30m. There are 11790 km between Sydney and Buenos Aires. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Sydney to Buenos Aires round-trip?

    Currently priced at $1,861, 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. 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 $1,569). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $2,602). 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

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 14 November 2025.
LATAM Airlines flights from Sydney Kingsford Smith to Buenos Aires
United Airlines flights from Sydney Kingsford Smith to Buenos Aires

Top airline flying from Sydney to Buenos Aires

Discover the top airline 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$1,861Average$2,605FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Buenos Aires?

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

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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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