$276 Cheap Flights from Porto Alegre (POA) to Posadas (PSS)

View $276 flight on Fri, Nov 28, 2025Opens in a new window

Popular airlines from Salgado Filho Intl. Airport (POA) to Posadas (PSS-Libertador General Jose de San Martin)

Cheap Flights from Porto Alegre to Posadas (POA-PSS)

Prices were available within the past 7 days and start at $276 for one-way flights and $594 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$594 Roundtrip, found 1 day ago
$594
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $594 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$611 Roundtrip, found 1 day ago
$611
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $611 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$634 Roundtrip, found 1 day ago
$634
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $634 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$682 Roundtrip, found 1 day ago
$682
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $682 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$699 Roundtrip, found 1 day ago
$699
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $699 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$722 Roundtrip, found 1 day ago
$722
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $722 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$739 Roundtrip, found 1 day ago
$739
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $739 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$756 Roundtrip, found 1 day ago
$756
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $756 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$768 Roundtrip, found 1 day ago
$768
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $768 found 1 day ago
Aerolineas Argentinas
Wed, Oct 1 - Fri, Oct 3
POA
Porto Alegre
PSS
Posadas
$776 Roundtrip, found 1 day ago
$776
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Wed, Oct 1 from Porto Alegre to Posadas, returning Fri, Oct 3, priced at $776 found 1 day ago

Frequently asked questions

How much does a flight from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS) cost?
Grab a cheap one-way flight from $276 or cheap return flight from $594 from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS)?
The cheapest month to fly from POA to PSS is October, when there's less demand. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest POA to PSS flight.
How many flights per day from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS)?
Direct flights from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from POA to PSS?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS)?
Select a flight from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Last-minute fares from POA to PSS are usually more expensive. To lock in the lowest prices, start looking for flights well ahead of time. That being said, if your travel plans are flexible, it's possible to score a cheap fare right before your trip.
Is it cheaper to book a POA to PSS flight and hotel package?
You'll typically save money by booking a POA to PSS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your preferred flights and accommodations, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Salgado Filho Intl. Airport (POA) to Libertador General Jose de San Martin Airport (PSS)?
Typically, you can cancel or reschedule your POA to PSS flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further details, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Salgado Filho Intl.
Destination airport
Libertador General Jose de San Martin
Roundtrip price
$594
Distance
341 mi

Book with confidence

Book with confidence

Porto Alegre to Posadas Flights

The cheapest times to fly from Porto Alegre 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 Porto Alegre to Posadas are during the month of October. You can find some of the cheapest flights from Porto Alegre to Posadas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto Alegre to Posadas

Sunday is one of the best days to book for cheap flights from Porto Alegre 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 Porto Alegre 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 Porto Alegre to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from $276 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 Porto Alegre 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 Porto Alegre 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.

 

Porto Alegre to Posadas Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.