Cheap flights from Rio de Janeiro to Buenos Aires from $116 GIG, SDU → AEP, EZE

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $215 to $301.

At $331, the cheapest return found recently is above that range.

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

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 22 Nov to compare.

Every date we hold

664 fares on 26 departure dates

Which month looks cheapest?

May 2027 is the cheapest month — from $263.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $72 to $109.

At $116, the cheapest one-way found recently is above that range.

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 10 Feb 2027 to compare.

Every date we hold

204 fares on 33 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $89.

Return

Fares 90 to 179 days before departure were typically 30% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 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 14 to 29 days before departure were typically 41% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 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 Rio de Janeiro to Buenos Aires?

The cheapest return found recently is $331 with LATAM Airlines Group, 22 Nov to 29 Nov, found yesterday. The cheapest return we hold, of any age, is $263 with JetSmart, 27 May 2027 to 30 May 2027, found 8 days ago. The cheapest return fare on each of 26 departure dates is usually $326 to $386.

How much is a one-way flight from Rio de Janeiro to Buenos Aires?

The cheapest one-way found recently is $116 with LATAM Airlines Group, 10 Feb 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $89 with JetSmart, 27 Dec, found 8 days ago. The cheapest one-way fare on each of 33 departure dates is usually $105 to $151.

What is the cheapest month to fly from Rio de Janeiro to Buenos Aires?

May 2027 is the cheapest month for a return, from $263, 27 May 2027 to 30 May 2027, found 8 days ago. December 2026 is the cheapest month for a one-way, from $89, 27 Dec, found 8 days ago.

Every date in December 2026

How far ahead should I book a flight from Rio de Janeiro to Buenos Aires?

In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 30% lower than 0 to 6 days before departure. One-way fares 14 to 29 days before departure were typically 41% lower than 0 to 6 days before departure.

Is there a direct flight from Rio de Janeiro to Buenos Aires?

Yes, the cheapest nonstop return found recently is $331 with LATAM Airlines Group, 22 Nov to 29 Nov, found yesterday. The cheapest nonstop one-way found recently is $117 with JetSmart, 18 Feb 2027, found 2 days ago.

Every nonstop date from Rio de Janeiro to Buenos Aires

How long is the flight from Rio de Janeiro to Buenos Aires?

The cheapest nonstop one-way found recently, with JetSmart on 18 Feb 2027, takes 3 h 20 min from Galeao Antonio Carlos Jobim International Airport (GIG) to Jorge Newbery Airport (AEP). The cheapest one-way found recently, with LATAM Airlines Group on 10 Feb 2027, takes 9 h 10 min with 1 stop.

Which airlines have the cheapest flights from Rio de Janeiro to Buenos Aires?

Between 16 Nov and 13 Oct 2027, JetSmart has the cheapest return on 12 of the 26 departure dates we hold, LATAM Airlines Group on 11 and Emirates on 2. Between 13 Nov and 8 Jul 2027, JetSmart has the cheapest one-way on 21 of the 33 departure dates we hold, LATAM Airlines Group on 9 and Aerolineas Argentinas on 2.