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Cheap flights from Rio de Janeiro, Brazil to Buenos Aires from £67

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
RIO — BUE
8 Apr — 15 Apr1
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 84 days in advance, depart on a Tuesday or Monday and return on a Sunday

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
Explore the most affordable flight options available from Rio de Janeiro to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 March 2026.

Tue 28/408:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Fri 8/504:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 4/3£165
Fri 24/410:45
GIG
-
EZE
Nonstop3h 28m
JetSMART
Mon 27/406:29
EZE
-
GIG
Nonstop2h 56m
JetSMART
Deal found 4/3£166
Mon 10/820:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Tue 18/816:05
AEP
-
GIG
Nonstop3h 05m
JetSMART
Deal found 4/3£169
Mon 10/811:45
GIG
-
AEP
Nonstop3h 24m
JetSMART
Sun 30/816:05
AEP
-
GIG
Nonstop3h 05m
JetSMART
Deal found 6/3£169
Thu 25/620:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Thu 2/704:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 5/3£171
Thu 4/620:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Sun 7/604:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 4/3£172
Tue 4/808:10
GIG
-
AEP
Nonstop3h 20m
JetSMART
Mon 10/816:05
AEP
-
GIG
Nonstop3h 05m
JetSMART
Deal found 7/3£173
Wed 3/620:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Sun 7/604:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 5/3£174
Sat 16/508:05
GIG
-
AEP
Nonstop3h 25m
JetSMART
Tue 19/504:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 4/3£175
Sat 15/808:10
GIG
-
AEP
Nonstop3h 20m
JetSMART
Wed 26/804:15
AEP
-
GIG
Nonstop3h 05m
JetSMART
Deal found 5/3£176
Sat 15/808:10
GIG
-
AEP
Nonstop3h 20m
JetSMART
Mon 24/816:05
AEP
-
GIG
Nonstop3h 05m
JetSMART
Deal found 6/3£177
Fri 1/511:55
GIG
-
AEP
Nonstop3h 25m
JetSMART
Sun 10/504:15
AEP
-
GIG
Nonstop2h 55m
JetSMART
Deal found 4/3£178

Find flight deals from Rio de Janeiro to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Rio de Janeiro (RIO) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 March 2026.

Round-trip from

£165

One-way from

£67

Popular in

February

Cheapest in

June

Average price

£216

Good one-way deal

£136 or less
JetSMART
  • JetSMART
  • 20/5-30/5
  • Nonstop
  • 6h 20m total
  • Rio de Janeiro to Buenos Aires
Search Deals
JetSMART
  • JetSMART
  • 6/7
  • Nonstop
  • 3h 25m total
  • Rio de Janeiro to Buenos Aires
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Rio de Janeiro (RIO) to Buenos Aires (BUE).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Rio de Janeiro to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 March 2026.
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 - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 14/8

11:45-15:09

Nonstop3h 24m

Buenos Aires Jorge Newbery

Thu 20/8

16:05-19:10

Nonstop3h 05m

£171

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Sat 2/5

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Sat 9/5

15:55-18:50

Nonstop2h 55m

£180

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Mon 6/7

20:05-23:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Fri 10/7

15:55-18:50

Nonstop2h 55m

£185

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 19/6

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 22/6

06:00-11:10

1 stop5h 10m

£192

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 10/6

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 15/6

06:00-11:10

1 stop5h 10m

£192

Rio de JaneiroBuenos Aires

GIG - EZE

GIGEZE

Rio de Janeiro–Galeão Intl

Thu 16/4

10:45-14:13

Nonstop3h 28m

Buenos Aires Ministro Pistarini

Mon 27/4

06:29-09:25

Nonstop2h 56m

£201

Rio de JaneiroBuenos Aires

GIG - EZE

GIGEZE

Rio de Janeiro–Galeão Intl

Mon 20/4

10:15-13:43

Nonstop3h 28m

Buenos Aires Ministro Pistarini

Fri 24/4

07:00-09:55

Nonstop2h 55m

£203

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 22/4

18:50-18:20

1 stop23h 30m

Buenos Aires Jorge Newbery

Fri 24/4

04:15-07:10

Nonstop2h 55m

£207

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 19/8

08:10-11:30

Nonstop3h 20m

Buenos Aires Jorge Newbery

Sun 23/8

06:00-11:00

1 stop5h 00m

£207

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 2/6

08:05-11:30

Nonstop3h 25m

Buenos Aires Jorge Newbery

Tue 9/6

22:10-11:05

1 stop12h 55m

£208

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 60 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Rio de Janeiro to Buenos Aires. Price data was last updated on 6 March 2026.

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 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of £62). Flying from Rio de Janeiro to Buenos Aires in January is currently the most expensive (average of £177). 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?

Find hourly flight availability from Rio de Janeiro to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 March 2026.

It’s typically best to fly out from Rio de Janeiro to Buenos Aires in the evening. Doing so could potentially save you 27% on the flight price compared to flying at midday, which is usually more expensive.

Weekly flight availability from Rio de Janeiro to Buenos Aires

Explore weekly flight availability from Rio de Janeiro to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 9 March 2026.

The most flights from RIO to BUE are scheduled on a Sunday (41 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

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 134 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, GOL have had the lowest number of delays on this route, with just 6% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Rio de Janeiro to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Departing from Rio de Janeiro to Buenos Aires will take you 3h 24m. Rio de Janeiro and Buenos Aires are separated by a distance of 1224 mi. Generally, flights for this route are direct.

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

    Most travelers choose Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery, Rio de Janeiro–Galeão Intl - Buenos Aires Ministro Pistarini or Rio de Janeiro Santos Dumont - 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 TAP AIR PORTUGAL (100%), Air Canada (91%) or KLM (90%) 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 £152, our data indicates the cheapest price to be £90. The most popular route (Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery), is priced around £442.

  • 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, June is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of £62). Flying from Rio de Janeiro to Buenos Aires in January is currently the most expensive (average of £177). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Rio de Janeiro to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Rio de Janeiro–Galeão Intl to Ministro Pistarini flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Rio de Janeiro to Buenos Aires?

Cheapflights makes it easy to find Rio de Janeiro to Buenos Aires flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Rio de Janeiro to Buenos Aires?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Rio de Janeiro to Buenos Aires.

Can Cheapflights find flights from Rio de Janeiro to Buenos Aires with no change fees?

Yes, we can. To see specific flights from Rio de Janeiro to Buenos Aires with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Rio de Janeiro to Buenos Aires become cheaper?

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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