$56 Cheap Flights from Posadas (PSS) to Buenos Aires (EZE)

View $56 flight on Thu, Jan 1, 2026Opens in a new window

Popular airlines from Posadas (PSS-Libertador General Jose de San Martin) to Ministro Pistarini Intl. Airport (EZE)

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Find available prices by choosing your travel dates.

Cheap Flights from Posadas to Buenos Aires (PSS-EZE)

Prices were available within the past 7 days and start at $56 for one-way flights and $112 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aerolineas Argentinas
Mon, Jun 9 - Tue, Jun 10
PSS
Posadas
EZE
Buenos Aires
$112 Roundtrip, found 17 hours ago
$112
Roundtrip
found 17 hours ago
Select Aerolineas Argentinas flight, departing Mon, Jun 9 from Posadas to Buenos Aires, returning Tue, Jun 10, priced at $112 found 17 hours ago
Aerolineas Argentinas
Sat, Jun 7 - Wed, Jun 25
PSS
Posadas
EZE
Buenos Aires
$119 Roundtrip, found 2 days ago
$119
Roundtrip
found 2 days ago
Select Aerolineas Argentinas flight, departing Sat, Jun 7 from Posadas to Buenos Aires, returning Wed, Jun 25, priced at $119 found 2 days ago
Aerolineas Argentinas
Sat, Jun 7 - Tue, Jun 10
PSS
Posadas
EZE
Buenos Aires
$124 Roundtrip, found 17 hours ago
$124
Roundtrip
found 17 hours ago
Select Aerolineas Argentinas flight, departing Sat, Jun 7 from Posadas to Buenos Aires, returning Tue, Jun 10, priced at $124 found 17 hours ago
Aerolineas Argentinas
Sat, May 10 - Fri, May 16
PSS
Posadas
EZE
Buenos Aires
$131 Roundtrip, found 1 day ago
$131
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sat, May 10 from Posadas to Buenos Aires, returning Fri, May 16, priced at $131 found 1 day ago
Aerolineas Argentinas
Fri, May 9 - Fri, May 16
PSS
Posadas
EZE
Buenos Aires
$131 Roundtrip, found 2 days ago
$131
Roundtrip
found 2 days ago
Select Aerolineas Argentinas flight, departing Fri, May 9 from Posadas to Buenos Aires, returning Fri, May 16, priced at $131 found 2 days ago
Aerolineas Argentinas
Fri, May 30 - Tue, Jun 10
PSS
Posadas
EZE
Buenos Aires
$135 Roundtrip, found 17 hours ago
$135
Roundtrip
found 17 hours ago
Select Aerolineas Argentinas flight, departing Fri, May 30 from Posadas to Buenos Aires, returning Tue, Jun 10, priced at $135 found 17 hours ago
Aerolineas Argentinas
Fri, May 9 - Fri, May 16
PSS
Posadas
EZE
Buenos Aires
$142 Roundtrip, found 1 day ago
$142
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Fri, May 9 from Posadas to Buenos Aires, returning Fri, May 16, priced at $142 found 1 day ago
Aerolineas Argentinas
Fri, May 9 - Fri, May 16
PSS
Posadas
EZE
Buenos Aires
$147 Roundtrip, found 5 days ago
$147
Roundtrip
found 5 days ago
Select Aerolineas Argentinas flight, departing Fri, May 9 from Posadas to Buenos Aires, returning Fri, May 16, priced at $147 found 5 days ago
Aerolineas Argentinas
Tue, Dec 30 - Sat, Jan 3
PSS
Posadas
EZE
Buenos Aires
$152 Roundtrip, found 22 hours ago
$152
Roundtrip
found 22 hours ago
Select Aerolineas Argentinas flight, departing Tue, Dec 30 from Posadas to Buenos Aires, returning Sat, Jan 3, priced at $152 found 22 hours ago
Aerolineas Argentinas
Fri, May 9 - Fri, May 16
PSS
Posadas
EZE
Buenos Aires
$169 Roundtrip, found 2 days ago
$169
Roundtrip
found 2 days ago
Select Aerolineas Argentinas flight, departing Fri, May 9 from Posadas to Buenos Aires, returning Fri, May 16, priced at $169 found 2 days ago
Flights from Posadas (PSS) to Buenos Aires (EZE)
Origin airport
Libertador General Jose de San Martin
Destination airport
Ministro Pistarini Intl.
Airlines serving
Aerolineas Argentinas
Roundtrip price
$112
Distance
534 mi

Posadas to Buenos Aires Flights

The cheapest times to fly from Posadas to Buenos Aires

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Posadas to Buenos Aires are during the month of June. You can find some of the cheapest flights from Posadas to Buenos Aires with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Posadas to Buenos Aires

Sunday is one of the best days to book for cheap flights from Posadas to Buenos Aires: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Posadas to Buenos Aires

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Posadas to Buenos Aires in 2025. You can also book with separate airlines for your outbound and return journeys, from $56 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Posadas to Buenos Aires flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Posadas to Buenos Aires airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE) cost?
Cheap return flights from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE) start from $131. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aerolineas Argentinas flight leaving PSS on May 16 2025 and touching down at EZE. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from PSS to EZE?
The cheapest flights from PSS to EZE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
When setting off from Libertador General Jose de San Martin Airport (PSS), you can hop on a direct flight to Ministro Pistarini Intl. Airport (EZE) with Aerolineas Argentinas.
What is the cheapest airline that flies from PSS to EZE?
With tickets starting at $107 for a one-way journey from PSS to EZE, Aerolineas Argentinas is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PSS on July 15 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
On average, there are 3 nonstop flights taking off from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE) every week. If you can’t see one that suits your schedule, think about booking a flight with a layover. Filter your search results on Expedia to include one or two stops and select the best alternative.
What are the most popular departure times for flights from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
Flights between PSS and EZE are their busiest at 9 PM. If you want a more relaxed trip and possibly cheaper prices, choose a time when demand is lower.
What day of the week has the most flights from PSS to EZE?
Jet off on a Tuesday if you’re searching for the largest selection of flights from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE).
What is the earliest flight from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
Catch the earliest flight at around 6:55PM UTC-3, heading out of Libertador General Jose de San Martin Airport (PSS). You’ll be flying for around 1h 30m, arriving at Ministro Pistarini Intl. Airport (EZE) at approximately 8:25PM UTC-3.
How long does it take to fly from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
Flights from PSS to EZE have an average travel time of 1 hour and 36 minutes. The distance between these two airports is 540 mi.
What is the best time to fly from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
To avoid potential delays on the Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Buenos Aires from Libertador General Jose de San Martin Airport (PSS)?
If you’re leaving on a direct flight from Libertador General Jose de San Martin Airport (PSS) to Buenos Aires, you’ll touch down at either Aeroparque Jorge Newbery Airport (AEP) or Ministro Pistarini Intl. Airport (EZE).
Is it cheaper to buy a plane ticket from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE) last-minute?
Booking your flight from PSS to EZE right before your getaway is usually more expensive. However, if there’s some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a PSS to EZE flight and hotel package?
You can save money by booking a PSS to EZE flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one convenient place. Once you’ve chosen your ideal flights and accommodations, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Libertador General Jose de San Martin Airport (PSS) to Ministro Pistarini Intl. Airport (EZE)?
In most instances, you can cancel or reschedule your PSS to EZE flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s guidelines and fees on flight changes, or if you need more details, head to our Customer Service portal.

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