Cheap flights from Sydney to Buenos Aires from $1,153
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Buenos Aires departing on 21/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Sydney to Buenos Aires
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Buenos Aires?
The cheapest month to fly to Buenos Aires from Sydney is in May. Flight prices, which tend to average around $2,348, are often lower during this time because this is during the off-season. If you don’t want to visit Buenos Aires in May, then you should wait until August to fly from Sydney, when ticket prices are also cheap, with an average price of $2,382.
What is the cheapest day to depart on your flight to Buenos Aires?
Our data shows that Tuesday is the least expensive day to fly to Buenos Aires. Tickets to fly out on this day can be as low as $2,634. Flights from Sydney to Buenos Aires on a Saturday will generally be more expensive and average around $2,958. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Buenos Aires?
Our data shows that the cheapest Sydney to Buenos Aires flights are usually those with departure times in the morning. Our users have found flights to Buenos Aires in the morning for as low as $2,717. Flights at midday are often more expensive, with an average ticket price of $3,373.
How far in advance should I book a flight to Buenos Aires?
You are more likely to see cheaper flights to Buenos Aires from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $2,675 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Sydney for as low as $2,239 on momondo.
Can stopping save me money on Sydney to Buenos Aires flights?
You could potentially save up to 13% on your flight if you consider stops on a Sydney to Buenos Aires flight.
How have Sydney to Buenos Aires flight prices changed over time?
As of July 2025, prices for Sydney to Buenos Aires flights are approximately 1% more expensive when compared to flights at the same time last year.
When to book flights from Sydney to Buenos Aires
Cheap Sydney to Buenos Aires (SYD to BUE) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Sydney to Buenos Aires
Best price found | $1,153 |
|---|---|
Fastest flight time | 17h 10m |
Direct flights | None |
Airports in Buenos Aires | 2 airports |
How far is Sydney Kingsford Smith to Buenos Aires by plane?
There are 11791.2 km between Sydney Kingsford Smith and Buenos Aires. By plane, this route typically takes 18h 02m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Buenos Aires?
Prices for flights from Sydney Kingsford Smith Airport to Buenos Aires were last updated today.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Buenos Aires?
The number of operators available for flights from Sydney Kingsford Smith Airport to Buenos Aires is 2 as of July 2025.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Buenos Aires?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Sydney to Buenos Aires?
momondo data reveals that the most frequently booked airline on the route from Sydney to Buenos Aires is LATAM Airlines, representing 85% of all bookings. The subsequent popular airlines are American Airlines at 7%, Air Canada at 4%, and United Airlines at 2%.
Best airlines flying from Sydney to Buenos Aires
Compare and see reviews for airlines that fly from Sydney to Buenos Aires with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $2,105 | Free cancellation | Rating 7.5 1,804 reviews | |||
| PriceFrom $2,388 | Free cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Sydney to Buenos Aires?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Buenos Aires for you.
Can I find flights from Sydney to Buenos Aires with flexible booking policies on momondo?
Yes. All flights to Buenos Aires from Sydney on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Sydney to Buenos Aires?
Once you have performed a search for Sydney to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Sydney to Buenos Aires right now. Can momondo alert me if prices change?
Price alerts on flights to Buenos Aires from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.