Cheap flights from Buenos Aires to Sydney from $1,414

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — SYD
24 Aug — 31 Aug1
1 adult

Cheapflights Tip: The best prices from Buenos Aires to Sydney Kingsford Smith are usually found in August or June, booked 33 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap 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 19 August 2025.

Round-trip from

$2,636

One-way from

$1,414

Popular in

January

Cheapest in

August

Average price

$2,698
LATAM Airlines
  • LATAM Airlines
  • 4/11-25/11
  • 3 total stops
  • 40h 10m total
  • Buenos Aires to Sydney
12/9
  • 12/9
  • 3 total stops
  • 59h 07m total
  • Buenos Aires to Sydney
Highest demand for flights based on searches. 15% potential increase in price ($938 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($144 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Buenos Aires to Sydney

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 19 August 2025.

Tue 4/1119:43EZE - SYD
1 stop20h 32mLATAM Airlines
Tue 25/1113:05SYD - EZE
2 stops19h 38mLATAM Airlines
Deal found 19/8$2,636
Wed 17/907:40EZE - SYD
2 stops34h 50mMultiple Airlines
Wed 24/909:10SYD - EZE
2 stops54h 20mMultiple Airlines
Deal found 18/8$2,670
Wed 19/1121:05AEP - SYD
1 stop19h 10mLATAM Airlines
Wed 26/1108:30SYD - AEP
2 stops20h 10mLATAM Airlines
Deal found 19/8$2,682
Sat 1/1115:40AEP - SYD
1 stop24h 35mLATAM Airlines
Sat 22/1111:10SYD - AEP
1 stop22h 30mLATAM Airlines
Deal found 19/8$2,699
Sat 1/1119:43EZE - SYD
1 stop20h 32mLATAM Airlines
Sun 23/1111:10SYD - EZE
2 stops29h 40mLATAM Airlines
Deal found 19/8$2,699
Wed 15/1018:13EZE - SYD
1 stop23h 32mLATAM Airlines
Tue 11/1111:10SYD - EZE
1 stop21h 33mLATAM Airlines
Deal found 19/8$2,702
Tue 4/1115:40AEP - SYD
1 stop24h 35mLATAM Airlines
Mon 17/1111:10SYD - AEP
1 stop22h 30mLATAM Airlines
Deal found 18/8$2,704
Tue 4/1119:43EZE - SYD
1 stop20h 32mLATAM Airlines
Mon 17/1111:10SYD - EZE
1 stop21h 33mLATAM Airlines
Deal found 18/8$2,704
Wed 3/921:05AEP - SYD
1 stop20h 40mLATAM Airlines
Wed 10/908:00SYD - AEP
2 stops24h 40mLATAM Airlines
Deal found 17/8$2,725
Tue 4/1121:05AEP - SYD
1 stop19h 10mLATAM Airlines
Tue 25/1113:05SYD - AEP
2 stops20h 35mLATAM Airlines
Deal found 19/8$2,730
Mon 18/812:58EZE - SYD
2 stops31h 02mMultiple Airlines
Mon 25/806:00SYD - EZE
2 stops25h 12mMultiple Airlines
Deal found 17/8$2,730
Fri 31/1015:40AEP - SYD
2 stops27h 15mMultiple Airlines
Sat 22/1111:10SYD - AEP
1 stop17h 30mMultiple Airlines
Deal found 17/8$2,733

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 19 August 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

Wed 19/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Wed 26/11

08:30-14:40

2 stops20h 10m

$2,682

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Fri 7/11

11:45-06:15

1 stop28h 30m

Sydney Kingsford Smith

Wed 26/11

11:10-19:40

1 stop22h 30m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sun 2/11

11:45-06:15

1 stop28h 30m

Sydney Kingsford Smith

Sun 23/11

11:10-19:40

1 stop22h 30m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Thu 6/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Wed 26/11

11:10-07:55

2 stops34h 45m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sat 1/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Wed 26/11

11:10-07:55

2 stops34h 45m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Wed 5/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Sun 23/11

11:10-14:40

1 stop17h 30m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Fri 7/11

15:40-06:15

1 stop24h 35m

Sydney Kingsford Smith

Sun 23/11

11:10-19:40

1 stop22h 30m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Mon 3/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Sat 22/11

11:10-14:40

1 stop17h 30m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sun 2/11

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Wed 26/11

11:10-07:55

2 stops34h 45m

$2,699

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Fri 7/11

11:45-06:15

1 stop28h 30m

Sydney Kingsford Smith

Sat 22/11

11:10-19:40

1 stop22h 30m

$2,699

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 37 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 8 August 2025.

Booking 33 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 $129). Flying from Buenos Aires to Sydney in October is currently the most expensive (average of $171). 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 19 August 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 27% 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?

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 19 August 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.

Comfort

7.4

Entertainment

7.0

Overall

7.5

Food

6.7

Boarding

7.6

Crew

8.0

Reviews

1 / 20
4.0
Okay

Duane,June 2025

GRU - MAD

The flight crew were accommodating and friendly. However, it was annoying that I did not receive the seat I had reserved when I originally booked my flight and was not able to get much help before takeoff.

Comfort

7.4

Entertainment

7.0

Overall

7.5

Food

6.7

Boarding

7.6

Crew

8.0

Reviews

1 / 20
4.0
Okay

Duane,June 2025

GRU - MAD

The flight crew were accommodating and friendly. However, it was annoying that I did not receive the seat I had reserved when I originally booked my flight and was not able to get much help before takeoff.

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 19h 10m. LATAM Airlines provides one of the quickest options available for as low as $2,699. 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 $2,649. You may be able to fly from Buenos Aires to Sydney for 17% less than the average price by searching for this airline.

  • What are the most popular routes 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 $129). Flying from Buenos Aires to Sydney in October is currently the most expensive (average of $171). 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
Coogee
Terrigal
Manly
Cronulla
Lithgow
Randwick
Bondi Beach
Leura

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 19 August 2025.

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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$2,649Average$2,976FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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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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