Rio to Buenos Aires: which month had the lowest fare?

What the data shows at a glance

The figures cover one lowest one-way fare per departure month, in US dollars, seen on Aviasales in searches made in the last 48 hours. They are not an average, not a price history and not a forecast. Read them as a single photograph of the route, taken on 7 November 2026.

Across those six departure months, the lowest fare we saw was US$88 for December 2026 departures, on a non-stop JetSMART flight seen for 24 December 2026. The next figures sit close together: US$89 for March 2027, US$93 for February 2027 and US$97 for January 2027. November 2026 and April 2027 both showed US$153.

Of the 71 fares seen on this route, 45 were direct and 26 involved at least one stop. That direct share matters if your priority is time rather than price. The data does not tell you how often direct seats appear at any given fare, so treat the share as a description of this sample only.

• Lowest fare seen: US$88, December 2026, JetSMART, non-stop
• Next lowest: US$89, March 2027, JetSMART, non-stop
• Highest of the six months: US$153, November 2026 and April 2027
• Direct fares seen: 45 of 71

Month by month: what the searches returned

November 2026 showed a lowest fare of US$153 with LATAM Brasil, on a flight with one stop, seen for 21 November 2026. December 2026 showed US$88 with JetSMART, non-stop, seen for 24 December 2026. Those two months hold the widest gap in the snapshot.

January 2027 showed US$97 with JetSMART, non-stop, seen for 1 January 2027. February 2027 showed US$93 with JetSMART, non-stop, seen for 20 February 2027. March 2027 showed US$89 with JetSMART, non-stop, seen for 4 March 2027, the second lowest figure in the set.

April 2027 showed US$153 with LATAM Brasil, on a flight with one stop, seen for 14 April 2027. Notice that the two US$153 figures both came with a stop, while the four lower figures were all non-stop. That is a description of these particular results, not a rule about the route.

Which airlines appear in the snapshot

Five airlines appear across the fares seen: JetSMART, LATAM Brasil, LATAM, Aerolineas Argentinas and Gol. Their lowest fares in the sample start at US$88 for JetSMART, US$153 for LATAM Brasil and LATAM, US$195 for Aerolineas Argentinas and US$241 for Gol. These are starting figures from the sample, not a ranking of quality or reliability.

JetSMART supplied the lowest fare in four of the six departure months, all non-stop. LATAM Brasil supplied the lowest fare in November 2026 and April 2027, both with one stop. LATAM, Aerolineas Argentinas and Gol appear in the wider sample without taking the lowest figure in any month listed here.

Airline names can look similar, so check the operating carrier on your booking rather than the brand on the search result. Baggage rules, seat selection and change conditions differ between carriers and between fare types on the same carrier. Confirm those details on the airline's own site before you pay.

Direct or with a stop

The snapshot contains 45 direct fares out of 71, so non-stop options clearly exist on this route. Four of the six monthly lowest fares were non-stop, all with JetSMART. The two US$153 figures came with one stop, which shows that a stop does not automatically mean a lower fare in this sample.

A non-stop flight saves time at the airport and removes the risk of a missed connection, but it may suit you less well if the departure time is awkward. A one-stop itinerary can open up different departure times and carriers, so weigh the whole journey rather than the fare alone. Check the total travel time and the connection airport before deciding.

If you need to connect, leave a sensible buffer and check whether the connection is on one ticket. A single ticket usually means the airline handles a missed connection, while separate tickets generally leave you to sort it out. Read the airline's conditions so you know where you stand.

How to choose your dates

Start with the dates you can actually travel, then compare the fares available across those dates. The snapshot gives one figure per month, so it cannot tell you which day of the week or which week of the month suits your budget. Use the monthly figures as a starting point for a wider search, not as a calendar.

If your plans are flexible, run the same search across a few departure months and note what comes back. Comparing December 2026 with March 2027, for example, shows two different lowest fares in this snapshot, US$88 and US$89. That does not mean either month will suit you better on price when you book, so check live results for your own dates.

School holidays, public holidays and local events can affect demand, and the data here says nothing about them. Check the calendar on both ends of the trip before you settle on dates. If a date is fixed, search it directly and compare the options that appear.

Using price alerts and comparing before you book

A price alert can save you repeated searching when your dates are fixed but your timing is open. FindMyFlight sends alerts by email only, confirmed by you, with a one-click unsubscribe. There are no SMS messages. Set an alert for your route and let the emails bring new results to your inbox.

When results arrive, compare the total cost rather than the headline fare. Add baggage, seat selection and any transfer at either airport, because those extras can change which option suits you. FindMyFlight lists results by price, low to high, whatever the commission, and never adds anything to a fare.

Look before you book at the airline's own conditions, especially change and cancellation rules. You book and pay the airline or partner directly, and FindMyFlight takes no payment. That means the airline's terms govern your ticket, so read them before you commit.

Common mistakes to avoid

One common mistake is treating a single snapshot as a pattern. The figures here come from searches made in the last 48 hours and describe one moment, not how fares behave across a year. Do not assume a month will be lower or higher because of what this snapshot shows.

Another is comparing a non-stop fare with a one-stop fare as if they were the same product. In this sample the four lowest monthly figures were non-stop and the two US$153 figures had a stop, so check what each fare includes before you judge it. Add the time cost of a connection to your comparison.

A third is ignoring the extras until checkout. Baggage allowances vary by carrier and fare type, and a fare that looks simple at first can grow once you add a bag. Read the fare rules, confirm the airport and terminal, and check the operating airline before you pay.

Questions and answers

What was the lowest fare seen from Rio De Janeiro to Buenos Aires?

The lowest one-way fare in the snapshot was US$88 for December 2026 departures with JetSMART, non-stop, seen for 24 December 2026. March 2027 followed at US$89. These are single figures from searches made in the last 48 hours, not averages.

Is this a price trend or a forecast?

Neither. The data is one lowest fare per departure month, seen in searches made in the last 48 hours. It is a single snapshot, not an average, not a price history and not a forecast of how fares will move. Check live results for your own dates.

How many fares on this route were direct?

Of the 71 fares seen, 45 were direct and 26 involved at least one stop. That is the direct share in this sample. The data does not show how often direct seats appear at any particular fare.

Which airlines appeared in the results?

Five airlines appeared: JetSMART, LATAM Brasil, LATAM, Aerolineas Argentinas and Gol. Their lowest fares in the sample started at US$88, US$153, US$153, US$195 and US$241 respectively. Check the operating carrier and fare rules before booking.

How do price alerts work on FindMyFlight?

Alerts are sent by email only and you confirm the subscription yourself, with a one-click unsubscribe. There are no SMS messages. Set an alert for your route, then compare the results that arrive against your own dates and total costs.