Cheap flights from Rio de Janeiro to Buenos Aires from R1 786

If you aren’t able to travel to Buenos Aires during the month of June, then flying in May is also cheap. Prices for this month can be found on momondo for an average of R4 156.

In the evening is the cheapest time of day to fly from Rio de Janeiro to Buenos Aires when you can find flight prices for as low as R5 255. Flying to Buenos Aires in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Buenos Aires is in the morning when prices are around R5 285.

Fly from Rio de Janeiro–Galeão Intl to Buenos Aires Ministro Pistarini for the best Rio de Janeiro - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from Rio de Janeiro when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around R5 209 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Rio de Janeiro for as low as R4 373 on momondo.

There is only 1 cabin class available to choose from on Rio de Janeiro to Buenos Aires flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Rio de Janeiro to Buenos Aires.

Historically, on average around 15% of flights between Rio de Janeiro and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

15 flights are operational daily from Rio de Janeiro to Buenos Aires as of October 2026. The most popular departure time for this route is 8:00, with 49% of flights per day taking off in the evening.

The number of flights available between Rio de Janeiro and Buenos Aires is 109 per week as of October 2026. The most frequent departure day is Fri, with 30% of weekly flights leaving on this day.