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Buenos Aires

$834+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BUE
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
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 20 days in advance, depart on a Tuesday or Sunday and return on a Sunday

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 septiembre 15, 2025.

Round-trip from

$1,386
(American Airlines)

One-way from

$834
(LATAM Airlines)

Popular in

December

Cheapest in

May

Average price

$1,637
From Sydney Kingsford Smith to Buenos Aires (BUE)
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One-way flight from Sydney Kingsford Smith to Buenos Aires (BUE)
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Highest demand for flights based on searches. 13% potential increase in price ($269 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/1310:10 amSYD - EZE
2 stops36h 50mAmerican Airlines
vie. 10/2410:30 pmEZE - SYD
2 stops44h 30mAmerican Airlines
Deal found 9/14$1,386
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/138:00 amSYD - EZE
2 stops23h 11mLATAM Airlines
vie. 10/246:13 pmEZE - SYD
1 stop23h 32mLATAM Airlines
Deal found 9/14$1,542
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/1312:50 pmSYD - AEP
2 stops20h 50mLATAM Airlines
vie. 10/249:05 pmAEP - SYD
1 stop20h 40mLATAM Airlines
Deal found 9/14$1,592
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/297:05 amSYD - EZE
2 stops25h 38mMultiple Airlines
mié. 11/57:43 pmEZE - SYD
1 stop20h 37mMultiple Airlines
Deal found 9/14$1,634
This Gotogate deal was found by Cheapflights users on 9/15. 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.
jue. 10/3011:10 amSYD - AEP
1 stop22h 30mLATAM Airlines
jue. 11/69:05 pmAEP - SYD
1 stop19h 15mLATAM Airlines
Deal found 9/15$1,635
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/297:05 amSYD - AEP
2 stops26h 35mMultiple Airlines
mié. 11/53:40 pmAEP - SYD
1 stop24h 40mMultiple Airlines
Deal found 9/14$1,636
This Gotogate deal was found by Cheapflights users on 9/14. 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.
dom. 10/1212:50 pmSYD - EZE
2 stops36h 55mLATAM Airlines
dom. 10/1912:48 pmEZE - SYD
1 stop28h 57mLATAM Airlines
Deal found 9/14$1,660
This LATAM Airlines deal was found by Cheapflights users on 9/15. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/217:30 pmSYD - EZE
2 stops35h 41mMultiple Airlines
mié. 11/124:05 amEZE - SYD
2 stops36h 15mMultiple Airlines
Deal found 9/15$1,661
This LATAM Airlines deal was found by Cheapflights users on 9/15. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2112:00 pmSYD - AEP
2 stops57h 40mMultiple Airlines
jue. 11/133:40 pmAEP - SYD
2 stops27h 50mMultiple Airlines
Deal found 9/15$1,691
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/137:45 amSYD - EZE
2 stops23h 26mMultiple Airlines
jue. 10/233:55 amEZE - SYD
2 stops37h 50mMultiple Airlines
Deal found 9/14$1,735
This LATAM Airlines deal was found by Cheapflights users on 9/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/128:00 pmSYD - EZE
2 stops35h 11mMultiple Airlines
dom. 10/1912:48 pmEZE - SYD
1 stop28h 57mMultiple Airlines
Deal found 9/14$1,738
This LATAM Airlines deal was found by Cheapflights users on 9/15. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2911:10 amSYD - AEP
1 stop22h 30mLATAM Airlines
mié. 12/313:40 pmAEP - SYD
1 stop24h 40mLATAM Airlines
Deal found 9/15$1,974

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 septiembre 15, 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

lun. 10/13

12:50 pm-7:40 pm

2 stops20h 50m

Buenos Aires Jorge Newbery

vie. 10/24

9:05 pm-7:45 am

1 stop20h 40m

$1,592

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

mié. 10/29

7:05 am-7:40 pm

2 stops26h 35m

Buenos Aires Jorge Newbery

mié. 11/5

3:40 pm-6:20 am

1 stop24h 40m

$1,636

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

mié. 10/29

7:05 am-6:43 pm

2 stops25h 38m

Buenos Aires Ministro Pistarini

mié. 11/5

7:43 pm-6:20 am

1 stop20h 37m

$1,636

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

mar. 10/21

7:30 pm-5:11 pm

2 stops35h 41m

Buenos Aires Ministro Pistarini

mié. 11/12

4:05 am-6:20 am

2 stops36h 15m

$1,661

SydneyBuenos Aires

SYD - AEP

SYDAEP

Sydney Kingsford Smith

mar. 10/21

12:00 pm-7:40 am

2 stops57h 40m

Buenos Aires Jorge Newbery

jue. 11/13

3:40 pm-9:30 am

2 stops27h 50m

$1,691

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

lun. 10/13

7:45 am-5:11 pm

2 stops23h 26m

Buenos Aires Ministro Pistarini

jue. 10/23

3:55 am-7:45 am

2 stops37h 50m

$1,735

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

dom. 10/12

8:00 pm-5:11 pm

2 stops35h 11m

Buenos Aires Ministro Pistarini

dom. 10/19

12:48 pm-7:45 am

1 stop28h 57m

$1,738

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

lun. 2/23

9:15 pm-10:25 pm

3 stops63h 10m

Buenos Aires Ministro Pistarini

jue. 3/5

11:55 pm-7:20 pm

3 stops53h 25m

$1,840

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

sáb. 3/14

6:30 am-6:43 pm

2 stops26h 13m

Buenos Aires Ministro Pistarini

dom. 3/29

7:45 am-6:15 am

2 stops56h 30m

$1,913

SydneyBuenos Aires

SYD - EZE

SYDEZE

Sydney Kingsford Smith

mié. 11/12

12:10 pm-7:20 am

2 stops33h 10m

Buenos Aires Ministro Pistarini

jue. 11/20

11:55 pm-9:05 am

2 stops67h 10m

$1,975

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 35 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 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 September 12, 2025.

The best time to book flights from Sydney to Buenos Aires is 20 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, April is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $795). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,260). 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.

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 septiembre 15, 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
1,847 reviews

Crew

8.0

Comfort

7.4

Overall

7.5

Entertainment

7.0

Boarding

7.6

Food

6.7

Reviews

1 / 20
8.0
Excellent

Darrel,Sep 2025

LIM - GRU

The Wi-Fi was not working, so there was no in-flight entertainment. The biggest disappointment was that my Delta diamond status did not transfer any status to my LATAM flight. I WOULD’VE THOUGHT THAT THERE WOULD BE A BETTER WORKING AGREEMENT BETWEEN THE AIRLINES.
LATAM Airlines
7.5
Good
1,847 reviews
LATAM Airlines
7.5
Good
1,847 reviews

Crew

8.0

Comfort

7.4

Overall

7.5

Entertainment

7.0

Boarding

7.6

Food

6.7

Reviews

1 / 20
8.0
Excellent

Darrel,Sep 2025

LIM - GRU

The Wi-Fi was not working, so there was no in-flight entertainment. The biggest disappointment was that my Delta diamond status did not transfer any status to my LATAM flight. I WOULD’VE THOUGHT THAT THERE WOULD BE A BETTER WORKING AGREEMENT BETWEEN THE AIRLINES.

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 20h 50m. 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, April is the cheapest month in which you can book a flight from Sydney to Buenos Aires (average of $795). Flying from Sydney to Buenos Aires in December is currently the most expensive (average of $1,260). 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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