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Cheap flights from Buenos Aires to Sydney from $1,223

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — SYD
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

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 22 January 2026.

Thu 25/602:00
EZE
-
SYD
1 stop21h 10m
Multiple Airlines
Thu 27/811:55
SYD
-
EZE
1 stop17h 20m
Multiple Airlines
Deal found 20/1$2,024
Mon 11/502:00
EZE
-
SYD
1 stop21h 10m
China Eastern
Mon 25/511:15
SYD
-
EZE
1 stop18h 15m
China Eastern
Deal found 20/1$2,106
Thu 2/702:00
EZE
-
SYD
1 stop21h 10m
China Eastern
Thu 16/711:15
SYD
-
EZE
1 stop18h 00m
China Eastern
Deal found 19/1$2,109
Sun 14/620:30
EZE
-
SYD
1 stop21h 20m
LATAM Airlines
Sat 11/711:45
SYD
-
EZE
1 stop24h 51m
LATAM Airlines
Deal found 21/1$2,116
Sun 14/621:05
AEP
-
SYD
1 stop20h 45m
LATAM Airlines
Sat 11/711:45
SYD
-
AEP
1 stop16h 00m
LATAM Airlines
Deal found 21/1$2,121
Thu 7/502:00
EZE
-
SYD
1 stop28h 10m
Multiple Airlines
Sun 24/518:55
SYD
-
EZE
1 stop34h 35m
Multiple Airlines
Deal found 20/1$2,124
Fri 13/319:04
EZE
-
SYD
1 stop21h 11m
LATAM Airlines
Sat 15/808:25
SYD
-
EZE
2 stops22h 56m
LATAM Airlines
Deal found 20/1$2,131
Sat 21/219:43
EZE
-
SYD
1 stop20h 32m
LATAM Airlines
Sun 8/311:10
SYD
-
EZE
1 stop20h 54m
LATAM Airlines
Deal found 21/1$2,163
Sat 21/221:05
AEP
-
SYD
1 stop19h 10m
LATAM Airlines
Sun 8/311:10
SYD
-
AEP
1 stop22h 35m
LATAM Airlines
Deal found 21/1$2,166
Mon 23/302:00
EZE
-
SYD
1 stop20h 40m
Multiple Airlines
Mon 30/312:15
SYD
-
EZE
1 stop18h 15m
Multiple Airlines
Deal found 21/1$2,189
Thu 30/402:00
EZE
-
SYD
1 stop27h 10m
Multiple Airlines
Sun 24/518:55
SYD
-
EZE
1 stop34h 35m
Multiple Airlines
Deal found 21/1$2,211
Sat 5/921:05
AEP
-
SYD
2 stops23h 25m
LATAM Airlines
Sat 26/911:45
SYD
-
AEP
1 stop16h 00m
LATAM Airlines
Deal found 20/1$2,233

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 22 January 2026.

Round-trip from

$2,024

One-way from

$1,223

Popular in

January

Cheapest in

August

Average price

$3,613
25/6-27/8
  • 25/6-27/8
  • 2 total stops
  • 38h 30m total
  • Buenos Aires to Sydney
Search Deals
15/3
  • 15/3
  • 3 total stops
  • 58h 35m total
  • Buenos Aires to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($461 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 22 January 2026.
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

Sat 21/2

21:05-09:20

2 stops22h 15m

Sydney Kingsford Smith

Sun 8/3

11:10-19:45

1 stop22h 35m

$2,212

Buenos AiresSydney

EZE - SYD

EZESYD

Buenos Aires Ministro Pistarini

Thu 7/5

02:00-12:10

1 stop21h 10m

Sydney Kingsford Smith

Mon 25/5

11:15-16:30

1 stop18h 15m

$2,264

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Thu 28/5

08:40-19:10

2 stops45h 30m

Sydney Kingsford Smith

Mon 22/6

11:00-19:40

2 stops21h 40m

$2,289

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Thu 2/4

21:05-06:50

1 stop19h 45m

Sydney Kingsford Smith

Wed 15/4

11:45-07:40

2 stops32h 55m

$2,316

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Thu 7/5

15:45-06:50

1 stop26h 05m

Sydney Kingsford Smith

Wed 20/5

11:45-19:40

1 stop20h 55m

$2,316

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Sat 14/3

11:30-06:15

1 stop28h 45m

Sydney Kingsford Smith

Mon 6/4

11:45-14:50

1 stop16h 05m

$2,326

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Tue 24/3

21:05-06:15

1 stop19h 10m

Sydney Kingsford Smith

Mon 30/3

09:00-19:45

2 stops24h 45m

$2,340

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Tue 24/3

21:05-08:55

2 stops21h 50m

Sydney Kingsford Smith

Mon 30/3

08:50-19:45

2 stops24h 55m

$2,356

Buenos AiresSydney

AEP - SYD

AEPSYD

Buenos Aires Jorge Newbery

Wed 11/2

21:05-09:20

2 stops22h 15m

Sydney Kingsford Smith

Wed 18/2

11:10-14:40

1 stop17h 30m

$2,432

Buenos AiresSydney

EZE - SYD

EZESYD

Buenos Aires Ministro Pistarini

Mon 29/6

02:00-12:10

1 stop21h 10m

Sydney Kingsford Smith

Thu 16/7

11:15-16:15

1 stop18h 00m

$2,457

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 40 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 16 January 2026.

Booking 19 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, February is the cheapest month in which you can book a flight from Buenos Aires to Sydney (average of $2,024). Flying from Buenos Aires to Sydney in January is currently the most expensive (average of $3,348). 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 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 98% 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 $2,857.

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 22 January 2026.
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
1,913 reviews
Check prices

Boarding

7.6

Overall

7.5

Entertainment

7.0

Comfort

7.3

Crew

8.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
LATAM Airlines
7.5
Good
1,913 reviews
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Boarding

7.6

Overall

7.5

Entertainment

7.0

Comfort

7.3

Crew

8.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

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 21h 10m. LATAM Airlines provides one of the quickest options available for as low as $2,264. The distance between Buenos Aires and Sydney is about 11759 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 $2,463. You may be able to fly from Buenos Aires to Sydney for 15% 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, February is the cheapest month in which you can book a flight from Buenos Aires to Sydney (average of $2,024). Flying from Buenos Aires to Sydney in January is currently the most expensive (average of $3,348). 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
Penrith
Manly
Katoomba
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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 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 22 January 2026.
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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$2,463Average$2,770FlexibilityNo 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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