Cheap flights from Porto Alegre to Buenos Aires from $141 POA → AEP, EZE

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 40 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $336 to $424.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 14-night return fares leaving within 3 days of 10 Aug 2027 to compare.

Every date we hold

18 fares on 3 departure dates

Which month looks cheapest?

August 2027 is the cheapest month — from $339.

Found recently, and the cheapest we hold

What have prices looked like?

Over 41 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $135 to $184.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 15 Dec to compare.

Every date we hold

12 fares on 3 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $135.

Return

Fares 180 or more days before departure were typically 20% lower than 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (40 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.

One-way

Fares 60 to 89 days before departure were typically 24% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (41 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.

How much is a return flight from Porto Alegre to Buenos Aires?

The cheapest return found recently is $339 with Aerolineas Argentinas, 10 Aug 2027 to 24 Aug 2027, found 2 days ago. The cheapest return fare on each of 3 departure dates is usually $358 to $420.

How much is a one-way flight from Porto Alegre to Buenos Aires?

The cheapest one-way found recently is $141 with Aerolineas Argentinas, 15 Dec, found 2 days ago. The cheapest one-way we hold, of any age, is $135 with LATAM Airlines Group, 11 Jan 2027, found 8 days ago. The cheapest one-way fare on each of 3 departure dates is usually $138 to $150.

What is the cheapest month to fly from Porto Alegre to Buenos Aires?

August 2027 is the cheapest month for a return, from $339, 10 Aug 2027 to 24 Aug 2027, found 2 days ago. January 2027 is the cheapest month for a one-way, from $135, 11 Jan 2027, found 8 days ago.

How far ahead should I book a flight from Porto Alegre to Buenos Aires?

In 40 days of prices between 24 Sept and 11 Nov, return fares 180 or more days before departure were typically 20% lower than 14 to 29 days before departure. In 41 days of prices between 24 Sept and 11 Nov, one-way fares 60 to 89 days before departure were typically 24% lower than 0 to 6 days before departure.

Is there a direct flight from Porto Alegre to Buenos Aires?

Yes, the cheapest nonstop return found recently is $339 with Aerolineas Argentinas, 10 Aug 2027 to 24 Aug 2027, found 2 days ago. The cheapest nonstop one-way found recently is $141 with Aerolineas Argentinas, 15 Dec, found 2 days ago.

How long is the flight from Porto Alegre to Buenos Aires?

The cheapest nonstop one-way found recently, with Aerolineas Argentinas on 15 Dec, takes 1 h 55 min from Salgado Filho International Airport (POA) to Jorge Newbery Airport (AEP).

Which airlines have the cheapest flights from Porto Alegre to Buenos Aires?

Between 24 Dec and 10 Aug 2027, Aerolineas Argentinas has the cheapest return on 2 of the 3 departure dates we hold, and Gol Transportes Aéreos on 1. Between 1 Dec and 11 Jan 2027, Gol Transportes Aéreos has the cheapest one-way on 1 of the 3 departure dates we hold, Aerolineas Argentinas on 1 and LATAM Airlines Group on 1.