$62 Cheap Flights from Buenos Aires (EZE) to Posadas (PSS)

View $62 flight on Thu, Jan 29, 2026Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

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

Prices were available within the past 7 days and start at $62 for one-way flights and $124 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aerolineas Argentinas
Thu, Nov 13 - Tue, Dec 2
EZE
Buenos Aires
PSS
Posadas
$124 Roundtrip, found 3 days ago
$124
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Nov 13 from Buenos Aires to Posadas, returning Tue, Dec 2, priced at $124 found 3 days ago
Aerolineas Argentinas
Thu, Nov 13 - Wed, Dec 3
EZE
Buenos Aires
PSS
Posadas
$127 Roundtrip, found 3 days ago
$127
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Nov 13 from Buenos Aires to Posadas, returning Wed, Dec 3, priced at $127 found 3 days ago
Aerolineas Argentinas
Thu, Nov 27 - Tue, Dec 16
EZE
Buenos Aires
PSS
Posadas
$129 Roundtrip, found 3 days ago
$129
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Nov 27 from Buenos Aires to Posadas, returning Tue, Dec 16, priced at $129 found 3 days ago
Aerolineas Argentinas
Thu, Oct 23 - Tue, Nov 11
EZE
Buenos Aires
PSS
Posadas
$133 Roundtrip, found 3 days ago
$133
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Oct 23 from Buenos Aires to Posadas, returning Tue, Nov 11, priced at $133 found 3 days ago
Aerolineas Argentinas
Thu, Oct 30 - Wed, Nov 19
EZE
Buenos Aires
PSS
Posadas
$137 Roundtrip, found 3 days ago
$137
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Oct 30 from Buenos Aires to Posadas, returning Wed, Nov 19, priced at $137 found 3 days ago
Aerolineas Argentinas
Thu, Nov 27 - Wed, Dec 17
EZE
Buenos Aires
PSS
Posadas
$138 Roundtrip, found 3 days ago
$138
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Nov 27 from Buenos Aires to Posadas, returning Wed, Dec 17, priced at $138 found 3 days ago
Aerolineas Argentinas
Sat, Nov 15 - Wed, Dec 3
EZE
Buenos Aires
PSS
Posadas
$140 Roundtrip, found 3 days ago
$140
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Sat, Nov 15 from Buenos Aires to Posadas, returning Wed, Dec 3, priced at $140 found 3 days ago
Aerolineas Argentinas
Thu, Oct 16 - Tue, Nov 4
EZE
Buenos Aires
PSS
Posadas
$146 Roundtrip, found 3 days ago
$146
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Oct 16 from Buenos Aires to Posadas, returning Tue, Nov 4, priced at $146 found 3 days ago
Aerolineas Argentinas
Thu, Nov 20 - Thu, Dec 11
EZE
Buenos Aires
PSS
Posadas
$148 Roundtrip, found 3 days ago
$148
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Nov 20 from Buenos Aires to Posadas, returning Thu, Dec 11, priced at $148 found 3 days ago
Aerolineas Argentinas
Thu, Oct 23 - Wed, Nov 12
EZE
Buenos Aires
PSS
Posadas
$151 Roundtrip, found 3 days ago
$151
Roundtrip
found 3 days ago
Select Aerolineas Argentinas flight, departing Thu, Oct 23 from Buenos Aires to Posadas, returning Wed, Nov 12, priced at $151 found 3 days ago
Flights from Buenos Aires (EZE) to Posadas (PSS)
Origin airport
Ministro Pistarini Intl.
Destination airport
Libertador General Jose de San Martin
Airlines serving
Aerolineas Argentinas
Roundtrip price
$123
Distance
534 mi

Buenos Aires to Posadas Flights

The cheapest times to fly from Buenos Aires to Posadas

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 Buenos Aires to Posadas are during the month of November. You can find some of the cheapest flights from Buenos Aires to Posadas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Buenos Aires to Posadas: 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 Buenos Aires to Posadas

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 Buenos Aires to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from $62 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 Buenos Aires to Posadas 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 Buenos Aires to Posadas 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 Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS) cost?
Discover the latest flight deals from EZE to PSS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EZE to PSS?
Fly straight from EZE to PSS in January to take advantage of cheaper fares. You can find a one-way Aerolineas Argentinas flight for $65 leaving on January 3 2026. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on July 1 2025 and remains unchanged.
Which airlines fly direct from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS)?
You can't catch a nonstop flight from Buenos Aires (EZE-Ministro Pistarini Intl.) to Libertador General Jose de San Martin Airport (PSS). However, you can seamlessly travel to Posadas without any layovers by departing from Aeroparque Jorge Newbery Airport (AEP).
What is the cheapest airline that flies from EZE to PSS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EZE to PSS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS)?
There aren't any daily nonstop flights from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from EZE to PSS?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS)?
To touch down at Libertador General Jose de San Martin Airport (PSS) on time, opt for a flight that leaves from Ministro Pistarini Intl. Airport (EZE) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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.
Is it cheaper to buy a plane ticket from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Waiting until right before your break to book a ticket from EZE to PSS generally means paying more. While it's possible to find some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule for a better chance of scoring a bargain.
Is it cheaper to book an EZE to PSS flight and hotel package?
Compared with arranging hotels and flights separately, booking an EZE to PSS flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Ministro Pistarini Intl. Airport (EZE) to Libertador General Jose de San Martin Airport (PSS)?
In most instances, you can modify or cancel your EZE to PSS flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.