Cheap Flights from Buenos Aires to Posadas

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Flight deals from Buenos Aires to Posadas Airport

Looking for a cheap last-minute deal or the best return flight from Buenos Aires to Posadas Airport? If you want to travel next month, return fares start from R 1,250. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Buenos Aires to Posadas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Buenos Aires to Posadas flights are currently cheapest in June.

Direct flights from Buenos Aires to Posadas

Buenos Aires to Posadas: Alternative routes

Compare routes from Buenos Aires to Posadas below. You may find an airport to fly into that's cheaper, faster, or easier than Posadas.

Buenos Aires to Posadas: Flight information

The things to know before you go.
Cheapest flight foundR 461
Cheapest month to flyJune
Average flight time1 hr, 40 mins
Most popular airlineGOL Linhas Aéreas
Average flights per week119

Finding cheap flights from Buenos Aires to Posadas: Frequently asked questions

The best price we found for a return flight from Buenos Aires to Posadas is R 942. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 39 minutes is the average flight time from Buenos Aires to Posadas.
GOL Linhas Aéreas, Aerolíneas Argentinas and LATAM Airlines fly direct from Buenos Aires to Posadas.
As of March 2026, there are 119 flights per week flying from Buenos Aires to Posadas.
The cheapest month to fly from Buenos Aires to Posadas is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Buenos Aires to Posadas Airport on Friday, 5 June 2026.
Yes – the average flight time is 1 hour and 39 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Posadas but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Posadas is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Posadas is Flybondi .

Travelling from Buenos Aires to Libertador General Jose de San Martin Airport (PSS): What you need to know

  • Start your journey at one of Buenos Aires's main airports, Buenos Aires Jorge Newbery Airfield (AEP) or Buenos Aires Ministro Pistarini Intl Airport (EZE). Explore your options for booking a flight from Buenos Aires to Libertador General Jose de San Martin Airport (PSS) departing from either of these.

  • Take a direct Buenos Aires to Libertador General Jose de San Martin Airport flight and you'll be travelling for around 1 hour 40 minutes.

  • Buenos Aires and Posadas (where Libertador General Jose de San Martin Airport is located) share the UTC-3 timezone. That means you won't have to adjust your watch once you arrive.

  • Buenos Aires Jorge Newbery Airfield (AEP) to Libertador General Jose de San Martin Airport (PSS) is the most popular route. There are 28 direct weekly departures to pick from. If you prefer a later start to the day, take the last flight with Aerolineas Argentinas at 8pm. Choose the first AEP to PSS departure with Aerolineas Argentinas at 6:45am if getting there sooner works for you.

  • Leave plenty of time to catch your flight from Buenos Aires to PSS. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month like September? Major public holidays and other high seasons can mean longer lines and delays at security. Be extra cautious and get there up to four hours ahead of international flights and two hours before domestic departures.

Airports in Buenos Aires

Buenos Aires Jorge Newbery Airfield (AEP)

  • Enjoy an uninterrupted journey from Buenos Aires Jorge Newbery Airfield (AEP). Nonstop flights from Buenos Aires to Libertador General Jose de San Martin Airport (PSS) can be booked from here.

  • Book your direct flight from Buenos Aires to Libertador General Jose de San Martin Airport with Aerolineas Argentinas. This popular airline operates services from AEP.

  • The top choice among passengers flying between AEP and PSS is Aerolineas Argentinas.

  • With 67.67% of services arriving as scheduled, Aerolineas Argentinas is the top performer for punctuality on this route.

  • The journey from central Buenos Aires to AEP takes around 40 minutes on public transport. If you ride-share, drive or get a taxi, you'll cover the 8 kilometres in 25 minutes or so, depending on traffic conditions.

  • Looking for a comfortable hotel close to Buenos Aires Jorge Newbery Airfield? If you're catching an early flight from Buenos Aires to Libertador General Jose de San Martin Airport, these stays will have you sleeping just around the corner from the terminal:

  • 64% of flights taking off from Buenos Aires Jorge Newbery Airfield touch down at their destination on time.

Buenos Aires Ministro Pistarini Intl Airport (EZE)

  • You can book a direct Buenos Aires to Libertador General Jose de San Martin Airport (PSS) plane ticket with departures from Buenos Aires Ministro Pistarini Intl Airport (EZE). Work out whether leaving from EZE works best for your plans.

  • Aerolineas Argentinas offers direct flights from Buenos Aires to PSS leaving from EZE. Book your favourite window seat and reach your destination in a single hop.

  • Aerolineas Argentinas is the most popular choice for passengers flying from EZE to PSS.

  • Aerolineas Argentinas is the most punctual carrier operating flights between Buenos Aires Ministro Pistarini Intl Airport and Libertador General Jose de San Martin Airport.

  • On public transport, you can travel from central Buenos Aires to EZE in around 1 hour 15 minutes. The terminal is roughly 32 kilometres away, and making the trip by car takes approximately 30 minutes.

  • Got a crack-of-dawn departure? Think about checking in to one of these hotels near Buenos Aires Ministro Pistarini Intl Airport the day before your Buenos Aires to PSS flight:

  • 78% of flights departing Buenos Aires Ministro Pistarini Intl Airport meet their expected arrival time.

About Libertador General Jose de San Martin Airport (PSS)

  • If you have a late flight from Buenos Aires to Libertador General Jose de San Martin Airport, few things top the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and sleeping not long after at one of these hotels near PSS:

  • Booking your ride around one week ahead of your Buenos Aires to Libertador General Jose de San Martin Airport flight can help you get a cheaper deal.

Getting from Libertador General Jose de San Martin Airport (PSS) to central Posadas

  • Libertador General Jose de San Martin Airport is around 8 kilometres from central Posadas. It takes around 20 minutes or so to get to the city by car.

  • It takes around 35 minutes if you're using public transport.

How to find the cheapest flights from Buenos Aires to Libertador General Jose de San Martin Airport (PSS)

  • The lowest price we've found for a one-way ticket from Buenos Aires to Libertador General Jose de San Martin Airport is R 461. For a return flight on this route, the best price is R 942. Depending on when you want to go and the availability, these fares may change.

  • To snap up cheap flights from Buenos Aires to PSS, book your plane ticket six months ahead of your planned departure.

  • November is when you're most likely to find a bargain on a Buenos Aires to Libertador General Jose de San Martin Airport ticket. If you'd like to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Stay on top of deals for plane tickets from Buenos Aires to PSS by setting up a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Tailor your trip using filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Buenos Aires to Libertador General Jose de San Martin Airport.

The best time to fly from Buenos Aires to Libertador General Jose de San Martin Airport (PSS)

  • December is the quietest month for flights from Buenos Aires to Libertador General Jose de San Martin Airport (PSS), while October is the most popular. Figure out the ideal time to visit Posadas based on whether you prefer a lively atmosphere or a more laid-back vibe.

  • Lock in a Buenos Aires to PSS plane ticket departing in January if you want to experience the city during its warmest month. You can expect temperatures in Posadas to range from 19ºC (66ºF) to 37ºC (99ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from Buenos Aires to Libertador General Jose de San Martin Airport in July when temperatures are between 8ºC (46ºF) and 24ºC (75ºF).

More about Posadas

  • When it comes to looking for somewhere to lay your head, you'll find the most popular stays in Posadas right here. Explore these hotels as soon as you've locked in your flight from Buenos Aires to Libertador General Jose de San Martin Airport:

  • Your visit to Posadas won't be complete without checking out the sights. Attractions that should be on your list include Plaza San Martin, La Iglesia Catedral de Posadas and Plaza 9 de Julio.

Explore more of Argentina

  • Posadas has plenty to offer, but there are so many other corners of Argentina just waiting to be explored. About 290 kilometres west of Posadas, a trip to Corrientes will keep you on the move. Start with leading sights like Esteros de Ibera, Museo del Carnaval y Chamamé Casa Ñanderecó and Catedral de Corrientes.

  • Formosa is another standout destination in Argentina and is around 257 kilometres northwest of Posadas. No journey is complete without dropping by Plaza San Martín, Costanera de Formosa and Biosfera Laguna Oca.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.