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Cheap flights from Rio de Janeiro, Brazil to Buenos Aires from £66

RIO — BUE
11 Oct — 18 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Rio de Janeiro to Buenos Aires are usually found in June or May, booked 88 days in advance, depart on a Tuesday or Friday and return on a Thursday

Cheap flight deals from Rio de Janeiro to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest flights from Rio de Janeiro to Buenos Aires

Fri 6/1108:05 -
Nonstop3h 25m
Sat 7/1104:17 -
Nonstop2h 58m
Deal found 7/9£163
Thu 10/1213:40 -
Nonstop3h 24m
Tue 15/1212:57 -
Nonstop2h 58m
Deal found 6/9£163
Fri 13/1120:05 -
Nonstop3h 25m
Mon 16/1115:57 -
Nonstop2h 58m
Deal found 6/9£171
Wed 16/1208:05 -
Nonstop3h 25m
Wed 16/1215:57 -
Nonstop2h 58m
Deal found 7/9£172
Thu 3/1213:40 -
Nonstop3h 24m
Thu 10/1212:57 -
Nonstop2h 58m
Deal found 6/9£172
Wed 11/1108:05 -
Nonstop3h 25m
Mon 16/1115:57 -
Nonstop2h 58m
Deal found 7/9£193
Wed 11/1109:20 -
Nonstop3h 24m
Fri 18/1206:32 -
Nonstop2h 58m
Deal found 8/9£198
Sat 24/1008:05 -
Nonstop3h 25m
Tue 27/1015:55 -
Nonstop2h 55m
Deal found 6/9£199
Thu 22/1013:40 -
Nonstop3h 28m
Mon 26/1005:29 -
Nonstop2h 56m
Deal found 6/9£199
Fri 6/1108:05 -
Nonstop3h 25m
Fri 18/1215:17 -
Nonstop2h 58m
Deal found 8/9£200
Wed 11/1108:05 -
Nonstop3h 25m
Fri 18/1215:17 -
Nonstop2h 58m
Deal found 8/9£203
Thu 12/1113:40 -
Nonstop3h 24m
Fri 18/1206:32 -
Nonstop2h 58m
Deal found 8/9£203

Find flight deals from Rio de Janeiro to Buenos Aires

Round-trip from

£163

One-way from

£66

Popular in

February

Cheapest in

June

Average price

£213

Good one-way deal

£111 or less
JetSMART
  • JetSMART
  • 6/11-7/11
  • Nonstop
  • 6h 23m total
  • Rio de Janeiro to Buenos Aires
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JetSMART
  • JetSMART
  • 23/10-31/12
  • Nonstop
  • 3h 25m total
  • Rio de Janeiro to Buenos Aires
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£19 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a one-way flight from Rio de Janeiro (RIO) to Buenos Aires (BUE).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Rio de Janeiro to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - AEP Buenos Aires Jorge Newbery

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 23/10

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66
Fastest return journey

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Thu 17/12

10:20-13:44

Nonstop3h 24m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Tue 29/12

10:20-13:44

Nonstop3h 24m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£88

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - AEP Buenos Aires Jorge Newbery

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 29/12

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - AEP Buenos Aires Jorge Newbery

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 17/11

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - AEP Buenos Aires Jorge Newbery

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 3/11

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Thu 19/11

13:40-17:04

Nonstop3h 24m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£98

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Tue 17/11

13:40-17:04

Nonstop3h 24m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£101

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Wed 17/2

10:20-13:44

Nonstop3h 24m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£108

Rio de JaneiroBuenos Aires

GIG Rio de Janeiro–Galeão Intl - EZE Buenos Aires Ministro Pistarini

GIGEZE

Rio de Janeiro–Galeão Intl

Mon 8/3

08:20-11:50

Nonstop3h 30m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-00:00

Nonstop0h 00m

£109

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 53 resultsSorted by cheapest first
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Best time to book a flight from Rio de Janeiro to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Rio de Janeiro with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Rio de Janeiro to Buenos Aires

What is the cheapest month to book a flight from Rio de Janeiro to Buenos Aires?

Currently, May is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of £180). Flying from Rio de Janeiro to Buenos Aires in February is currently the most expensive (average of £251). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RIO to BUE?

It’s typically best to fly out from Rio de Janeiro to Buenos Aires in the evening. Doing so could potentially save you 17% on the flight price compared to flying at midday, which is usually more expensive.

Weekly flight availability from Rio de Janeiro to Buenos Aires

The most flights from RIO to BUE are scheduled on a Thursday (36 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost for a return flight from Rio de Janeiro to Buenos Aires?

Airfare is below average for this route at the moment.
Rio de Janeiro to Buenos Aires flights typically cost between £177 and £260 in November.
The cheapest return price found within the last 5 days was £163 on JetSMART (6 Nov–7 Nov).

How often are flights from Rio de Janeiro to Buenos Aires delayed?

About 14% of weekly flights between Rio de Janeiro and Buenos Aires have experienced delays in the past year, with the average delay time being 129 minutes.

What is the most punctual flight time for Rio de Janeiro to Buenos Aires flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Rio de Janeiro to Buenos Aires flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 6% of flights being delayed.

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

The price you pay for your flight from Rio de Janeiro to Buenos Aires may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

    Departing from Rio de Janeiro to Buenos Aires will take you 3h 20m. Rio de Janeiro and Buenos Aires are separated by a distance of 1241 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Rio de Janeiro to Buenos Aires?

    Most travelers choose Rio de Janeiro Santos Dumont - Buenos Aires Ministro Pistarini, Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery or Rio de Janeiro–Galeão Intl - Buenos Aires Ministro Pistarini when deciding on the best route from Rio de Janeiro to Buenos Aires.

  • What are the most reliable airlines from Rio de Janeiro to Buenos Aires?

    Consider Air France (100%), Air Canada (97%) or Finnair (92%) when booking your flight. These represent the most reliable airlines when flying from Rio de Janeiro to Buenos Aires.

  • What are the cheapest flights from Rio de Janeiro to Buenos Aires?

    Looking for the cheapest flight from Rio de Janeiro to Buenos Aires? While on average our users pay £120, our data indicates the cheapest price to be £59. The most popular route (Rio de Janeiro Santos Dumont - Buenos Aires Ministro Pistarini), is priced around £420.

  • Can I find deals for flights from Rio de Janeiro to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Rio de Janeiro to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Rio de Janeiro to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rio de Janeiro to Buenos Aires.

  • Can I find deals for business class flights from Rio de Janeiro to Buenos Aires?

    Yes. Cheapflights offers flight deals from Rio de Janeiro to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rio de Janeiro to Buenos Aires?

    Currently, May is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of £180). Flying from Rio de Janeiro to Buenos Aires in February is currently the most expensive (average of £251). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Rio de Janeiro to Buenos Aires

Rio de Janeiro–Galeão Intl to Ministro Pistarini flights

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Yes! Start tracking prices for Rio de Janeiro to Buenos Aires flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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