Cheap flights from Buenos Aires to Posadas from $134 AEP, EZE → PSS
Jorge Newbery Airport (AEP), Ministro Pistarini Airport (EZE) → Posadas Airport (PSS)
The cheapest return found recently is $134 with Aerolineas Argentinas, 28 Nov – 2 Dec, found 2 days ago.
- Cheapest return found recently
- $134, 28 Nov to 2 Dec
- Usual return price
- $168 to $199
- Cheapest month to fly
- November 2026, return fares from $134 found in the last 7 days
Return
The cheapest return fare on each of 5 departure dates is usually $168 to $199.
Cheapest return found recently
$134
28 Nov – 2 Dec · Aerolineas Argentinas
Jorge Newbery Airport (AEP) → Posadas Airport (PSS)
Leaves 4:00 p.m. · Return leaves 6:16 p.m. · 3 h 15 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$134
28 Nov – 2 Dec · Aerolineas Argentinas
Jorge Newbery Airport (AEP) → Posadas Airport (PSS)
Leaves 4:00 p.m. · Return leaves 6:16 p.m. · 3 h 15 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$134 28 Nov – 2 Decfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 29 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $74 to $310.
29 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 13 Nov to 4 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 28 Nov to compare.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 18 Nov | $199 | Aerolineas Argentinas | Jorge Newbery Airport (AEP) → Posadas Airport (PSS) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 17 Nov – 27 Nov | $234 | Aerolineas Argentinas | Jorge Newbery Airport (AEP) → Posadas Airport (PSS) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 18 Nov – 28 Nov | $168 | JetSmart | Jorge Newbery Airport (AEP) → Posadas Airport (PSS) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 28 Nov – 2 Dec | $134 | Aerolineas Argentinas | Jorge Newbery Airport (AEP) → Posadas Airport (PSS) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 4 Dec – 6 Dec | $185 | Aerolineas Argentinas | Ministro Pistarini Airport (EZE) → Posadas Airport (PSS) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $134.
Airlines on the cheapest dates: Aerolineas Argentinas, JetSmart.
Premium cabin fares from Buenos Aires to Posadas
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 28 Nov – 2 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Buenos Aires to Posadas?
Return
Fares 30 to 59 days before departure were typically 45% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (29 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $136 | $74 | +83% | 10 |
| 7–13 days | $144 | $74 | +94% | 20 |
| 30–59 days | $74 | $74 | Cheapest seen | 8 |
Live price for these dates
The cheapest return found recently is for 28 Nov – 2 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Buenos Aires to Posadas?
The cheapest return found recently is $134 with Aerolineas Argentinas, 28 Nov to 2 Dec, found 2 days ago. The cheapest return fare on each of 5 departure dates is usually $168 to $199.
What is the cheapest month to fly from Buenos Aires to Posadas?
November 2026 is the cheapest month for a return, from $134, 28 Nov to 2 Dec, found 2 days ago.
How far ahead should I book a flight from Buenos Aires to Posadas?
In 29 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 45% lower than 0 to 6 days before departure.
Is there a direct flight from Buenos Aires to Posadas?
Yes, the cheapest nonstop return found recently is $134 with Aerolineas Argentinas, 28 Nov to 2 Dec, found 2 days ago.
Which airlines have the cheapest flights from Buenos Aires to Posadas?
Between 13 Nov and 4 Dec, Aerolineas Argentinas has the cheapest return on 4 of the 5 departure dates we hold, and JetSmart on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work