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Cheap flights from Buenos Aires to Sydney from $1,254

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — SYD
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Buenos Aires to Sydney Kingsford Smith are usually found in August or November, booked 61 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Buenos Aires to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Buenos Aires to Sydney
Explore the most affordable flight options available from Buenos Aires to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Thu 18/1202:00EZE - SYD
1 stop22h 50mMultiple Airlines
Mon 19/109:55SYD - EZE
1 stop20h 35mMultiple Airlines
Deal found 3/12$2,119
Thu 25/1202:00EZE - SYD
1 stop23h 05mMultiple Airlines
Thu 29/111:45SYD - EZE
1 stop19h 10mMultiple Airlines
Deal found 3/12$2,291
Thu 18/1202:00EZE - SYD
1 stop23h 05mMultiple Airlines
Mon 5/107:45SYD - EZE
1 stop22h 45mMultiple Airlines
Deal found 4/12$2,512
Thu 11/1202:00EZE - SYD
1 stop41h 10mMultiple Airlines
Sun 28/1211:10SYD - EZE
1 stop23h 35mMultiple Airlines
Deal found 3/12$2,675
Thu 18/1202:00EZE - SYD
1 stop22h 50mMultiple Airlines
Sat 3/111:10SYD - EZE
1 stop21h 33mMultiple Airlines
Deal found 3/12$2,760
Wed 10/1211:30AEP - SYD
1 stop28h 45mLATAM Airlines
Sun 1/208:30SYD - AEP
2 stops25h 10mLATAM Airlines
Deal found 4/12$2,923
Fri 19/1205:50AEP - SYD
1 stop21h 50mMultiple Airlines
Mon 19/112:20SYD - AEP
1 stop22h 20mMultiple Airlines
Deal found 3/12$3,174
Tue 23/1221:05AEP - SYD
2 stops22h 40mLATAM Airlines
Sat 17/111:10SYD - AEP
1 stop22h 30mLATAM Airlines
Deal found 3/12$3,203
Tue 23/1221:05AEP - SYD
2 stops23h 20mLATAM Airlines
Sun 1/208:30SYD - AEP
2 stops25h 10mLATAM Airlines
Deal found 4/12$3,224
Wed 10/1208:50AEP - SYD
2 stops42h 40mMultiple Airlines
Sat 27/1206:30SYD - AEP
2 stops27h 10mMultiple Airlines
Deal found 2/12$3,247
Wed 10/1208:50AEP - SYD
2 stops42h 40mMultiple Airlines
Fri 26/1212:25SYD - AEP
2 stops40h 15mMultiple Airlines
Deal found 2/12$3,261

Find flight deals from Buenos Aires to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to Sydney (SYD). 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 5 December 2025.

Round-trip from

$1,881

One-way from

$1,254

Popular in

January

Cheapest in

August

Average price

$3,444
26/5-11/6
  • 26/5-11/6
  • 4 total stops
  • 63h 35m total
  • Buenos Aires to Sydney
Search Deals
8/12
  • 8/12
  • 1 total stop
  • 20h 40m total
  • Buenos Aires to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($633 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($133 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Buenos Aires to Sydney 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 5 December 2025.
Use the filters below to find and compare flights from Buenos Aires to Sydney that are best for you.

Fly from

Buenos Aires

Fly to

Sydney

Route

Depart

Return

Price

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Mon 16/2

15:40-09:20

2 stops27h 40m

Sydney Kingsford Smith

Thu 26/2

11:10-14:40

1 stop17h 30m

$2,225

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Fri 13/2

15:40-08:55

2 stops27h 15m

Sydney Kingsford Smith

Sat 28/2

08:10-19:40

2 stops25h 30m

$2,349

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Fri 13/2

15:40-06:15

1 stop24h 35m

Sydney Kingsford Smith

Wed 25/2

11:10-14:40

1 stop17h 30m

$2,556

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Tue 10/2

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Fri 27/2

11:10-19:40

1 stop22h 30m

$2,689

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Tue 10/3

15:40-06:15

1 stop24h 35m

Sydney Kingsford Smith

Mon 23/3

11:10-19:40

1 stop22h 30m

$2,792

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sat 30/5

21:05-06:15

1 stop20h 10m

Sydney Kingsford Smith

Sun 21/6

11:10-14:40

1 stop16h 30m

$2,795

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sun 31/5

21:05-06:15

1 stop20h 10m

Sydney Kingsford Smith

Mon 22/6

11:10-14:40

1 stop16h 30m

$2,795

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Wed 11/3

18:50-09:00

2 stops24h 10m

Sydney Kingsford Smith

Wed 18/3

12:20-18:40

1 stop20h 20m

$2,804

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sat 21/3

11:30-06:15

1 stop28h 45m

Sydney Kingsford Smith

Tue 14/4

06:20-19:40

2 stops26h 20m

$2,869

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sun 17/5

08:40-08:20

2 stops34h 40m

Sydney Kingsford Smith

Tue 9/6

11:10-14:40

1 stop16h 30m

$2,884

Flights are sorted by cheapest return flights first.

Deals found on 4/12

Showing 1-10 of 46 results
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Best time to book a flight from Buenos Aires to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Buenos Aires 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 Buenos Aires to Sydney

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

Use this chart to determine the optimal time to book a return flight from Buenos Aires to Sydney. Price data was last updated on 28 November 2025.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buenos Aires to Sydney. 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 Buenos Aires to Sydney?

Currently, May is the cheapest month in which you can book a flight from Buenos Aires to Sydney (average of $2,293). Flying from Buenos Aires to Sydney in January is currently the most expensive (average of $3,194). 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 BUE to SYD?

Find hourly flight availability from Buenos Aires to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.

A simple way to save on the total cost of your ticket is to fly from Buenos Aires to Sydney at midday. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the morning.

How much does it cost for a return flight from Buenos Aires to Sydney?

What’s the top stopover airport for flights from Buenos Aires to Sydney?

Share of one-stop return flights from Buenos Aires to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Santiago (SCL) – chosen by Cheapflights users on 99% of one-stop itineraries from Buenos Aires to Sydney on Cheapflights.

What’s the cheapest stopover airport for flights from Buenos Aires to Sydney?

Average return fare for one-stop flights from Buenos Aires to Sydney, 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 $2,808.

What’s the fastest stopover option from Buenos Aires to Sydney?

Shortest average travel time for one-stop one-way flights from Buenos Aires to Sydney, 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: 19h 55m.

Which airport typically offers the quickest stopover for flights from Buenos Aires to Sydney?

Average stopover duration for one-stop one-way flights from Buenos Aires to Sydney, 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 2h 13m.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 5 December 2025.
Check out reviews from past customers who have flown with LATAM Airlines from Buenos Aires to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,890 reviews
Check prices

Food

6.7

Overall

7.5

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP
LATAM Airlines
7.5
Good
1,890 reviews
LATAM Airlines
7.5
Good
1,890 reviews
Check prices

Food

6.7

Overall

7.5

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to Sydney. 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 into for flights to Sydney from Buenos Aires?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Buenos Aires. On average, Kingsford Smith has 0 inbound flights from Buenos Aires per day from 1 airline. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

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

    A quick flight from Buenos Aires to Sydney can take about 27h 40m. LATAM Airlines provides one of the quickest options available for as low as $2,225. The distance between Buenos Aires and Sydney is about 11790 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Cheapflights users have booked flights from Buenos Aires to Sydney round-trip from $2,530. You may be able to fly from Buenos Aires to Sydney for 16% less than the average price by searching for this airline.

  • What are the most popular routes from Buenos Aires to Sydney?

    Most travellers choose Buenos Aires Ministro Pistarini - Sydney Kingsford Smith, Buenos Aires Jorge Newbery - Sydney Kingsford Smith or El Palomar - Sydney Kingsford Smith when deciding on the best route from Buenos Aires to Sydney.

  • Can I find deals for flights from Buenos Aires to Sydney that include hotel bookings?

    Yes. In addition to deals on Buenos Aires to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Buenos Aires to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buenos Aires to Sydney.

  • Can I find deals for business class flights from Buenos Aires to Sydney?

    Yes. Cheapflights offers flight deals from Buenos Aires to Sydney 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 Buenos Aires to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Buenos Aires to Sydney (average of $2,293). Flying from Buenos Aires to Sydney in January is currently the most expensive (average of $3,194). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

Browse thousands of different options on Cheapflights for your next trip

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Fly from Buenos Aires to Sydney on these airlines

Choose from the following airlines for your flight from Buenos Aires to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 5 December 2025.
LATAM Airlines flights from Buenos Aires to Sydney Kingsford Smith

Top airline flying from Buenos Aires to Sydney

Discover the top airline that operate flights from Buenos Aires to Sydney. 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$2,530Average$2,848FlexibilityNo cancel feeOn-time81%
Search LATAM 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 Buenos Aires to Sydney?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Buenos Aires to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Buenos Aires to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Buenos Aires to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Buenos Aires to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Buenos Aires to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Buenos Aires today and book when prices fit your budget.

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