HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$79+ Cheap flights from Rio de Janeiro, Brazil (RIO) to Buenos Aires (BUE)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
RIO — BUE
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rio de Janeiro to Buenos Aires with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
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 Friday and return on a Wednesday

Cheap flight deals from Rio de Janeiro to Buenos Aires

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 May 6, 2026.

This Justfly.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:50 pm
GIG
-
AEP
Nonstop3h 25m
Flybondi
Sat 9/128:05 pm
AEP
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/1$210
This Justfly.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am
GIG
-
EZE
Nonstop3h 25m
Flybondi
Mon 9/2811:15 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/4$211
This FlightHub deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:50 pm
GIG
-
AEP
Nonstop3h 25m
Flybondi
Tue 9/811:15 am
AEP
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/1$213
This Booking.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:50 am
GIG
-
EZE
Nonstop3h 20m
Flybondi
Sun 6/287:05 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/3$213
This Justfly.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:50 pm
GIG
-
AEP
Nonstop3h 25m
Flybondi
Mon 9/288:05 pm
AEP
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/4$214
This FlightHub deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:05 am
GIG
-
AEP
Nonstop3h 25m
Flybondi
Sun 11/82:30 pm
AEP
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/4$216
This FlightHub deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:15 pm
GIG
-
EZE
Nonstop3h 25m
Flybondi
Sun 11/86:20 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/4$217
This Justfly.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am
GIG
-
AEP
Nonstop3h 25m
Flybondi
Wed 10/148:05 pm
AEP
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/3$221
This Booking.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:50 am
GIG
-
EZE
Nonstop3h 20m
Flybondi
Thu 7/27:05 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/1$223
This Booking.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:50 am
GIG
-
EZE
Nonstop3h 20m
Flybondi
Tue 6/307:05 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/3$225
This CheapOair deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:50 am
GIG
-
EZE
Nonstop3h 20m
Flybondi
Mon 8/247:05 am
EZE
-
GIG
Nonstop2h 55m
Flybondi
Deal found 5/3$226
This CheapOair deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:50 am
GIG
-
EZE
Nonstop3h 20m
Flybondi
Sat 9/123:10 pm
EZE
-
GIG
Nonstop2h 50m
Flybondi
Deal found 5/6$229

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 May 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$210
(Justfly.com)

One-way from

$79
(CheapOair)

Popular in

February

Cheapest in

June

Average price

$236

Good round-trip deal

$244 or less

Good one-way deal

$149 or less
Provider with most accurate pricing for Rio de Janeiro (RIO)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Buenos Aires (BUE) flights.
Search Deals
From Rio de Janeiro (RIO) to Buenos Aires (BUE)
Search Deals
One-way flight from Rio de Janeiro (RIO) to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Rio de Janeiro (RIO) to Buenos Aires (BUE).
Search Deals
Price to beat on a one-way flight from Rio de Janeiro (RIO) to Buenos Aires (BUE).
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated May 6, 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 round-trip
Quickest round-trip

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Sat 8/15

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Fri 8/21

3:10 pm-6:05 pm

Nonstop2h 55m

$239

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 8/4

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 8/10

4:15 am-7:10 am

Nonstop2h 55m

$279

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 6/17

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 6/29

4:15 am-7:10 am

Nonstop2h 55m

$279

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 10/9

11:55 am-3:20 pm

Nonstop3h 25m

Buenos Aires Jorge Newbery

Thu 10/15

4:15 am-7:10 am

Nonstop2h 55m

$295

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 10/13

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Sat 10/17

3:55 pm-6:50 pm

Nonstop2h 55m

$295

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 6/3

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Wed 6/10

3:55 pm-6:50 pm

Nonstop2h 55m

$299

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 10/30

8:05 am-11:30 am

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 11/2

4:30 pm-12:50 pm

1 stop20h 20m

$309

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 6/19

11:55 am-3:20 pm

Nonstop3h 25m

Buenos Aires Jorge Newbery

Mon 6/29

4:15 am-7:10 am

Nonstop2h 55m

$311

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Tue 6/23

8:05 pm-11:30 pm

Nonstop3h 25m

Buenos Aires Jorge Newbery

Tue 6/30

3:55 pm-6:50 pm

Nonstop2h 55m

$311

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Sun 10/11

4:45 pm-1:16 am

1 stop8h 31m

Buenos Aires Jorge Newbery

Thu 10/15

3:55 pm-6:50 pm

Nonstop2h 55m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Compare providers for flights from Rio de Janeiro to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rio de Janeiro to Buenos Aires in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rio de Janeiro-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rio de Janeiro-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rio de Janeiro-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rio de Janeiro-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rio de Janeiro-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Rio de Janeiro to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $218). Flying from Rio de Janeiro to Buenos Aires in February is currently the most expensive (average of $334). 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 May 6, 2026.

A simple way to save on the total cost of your ticket is to fly from Rio de Janeiro to Buenos Aires in the evening. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight at noon.

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 May 6, 2026.

The most flights from RIO to BUE are scheduled on a Tuesday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from Rio de Janeiro to Buenos Aires?

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 133 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 Friday 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 last year, GOL have had the lowest number of delays on this route, with just 7% of flights being delayed.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated May 6, 2026.
Read through reviews of airlines operating flights from Rio de Janeiro to Buenos Aires, such as Aerolineas Argentinas,GOL, andJetSMART. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aerolineas Argentinas
8.1
Very good
1,040 reviews

Crew

8.4

Food

6.5

Comfort

7.6

Overall

8.1

Boarding

8.0

Entertainment

5.8

Reviews

1 / 7
10.0
Excellent

Joseph,Mar 2026

MIA - EZE

First time flying with them to Buenos Aires. No issues at all. Boarded on time, departed on time, smooth flight and attendants were great.
Aerolineas Argentinas
8.1
Very good
1,040 reviews
Aerolineas Argentinas
8.1
Very good
1,040 reviews

Crew

8.4

Food

6.5

Comfort

7.6

Overall

8.1

Boarding

8.0

Entertainment

5.8

Reviews

1 / 7
10.0
Excellent

Joseph,Mar 2026

MIA - EZE

First time flying with them to Buenos Aires. No issues at all. Boarded on time, departed on time, smooth flight and attendants were great.
GOL
7.3
Good
1,211 reviews
Aerolineas Argentinas
8.1
Very good
1,040 reviews

Crew

8.4

Food

6.5

Comfort

7.6

Overall

8.1

Boarding

8.0

Entertainment

5.8

Reviews

1 / 7
10.0
Excellent

Joseph,Mar 2026

MIA - EZE

First time flying with them to Buenos Aires. No issues at all. Boarded on time, departed on time, smooth flight and attendants were great.
JetSMART
6.7
Okay
301 reviews
Aerolineas Argentinas
8.1
Very good
1,040 reviews

Crew

8.4

Food

6.5

Comfort

7.6

Overall

8.1

Boarding

8.0

Entertainment

5.8

Reviews

1 / 7
10.0
Excellent

Joseph,Mar 2026

MIA - EZE

First time flying with them to Buenos Aires. No issues at all. Boarded on time, departed on time, smooth flight and attendants were great.
Flybondi
5.9
Fair
221 reviews
Aerolineas Argentinas
8.1
Very good
1,040 reviews

Crew

8.4

Food

6.5

Comfort

7.6

Overall

8.1

Boarding

8.0

Entertainment

5.8

Reviews

1 / 7
10.0
Excellent

Joseph,Mar 2026

MIA - EZE

First time flying with them to Buenos Aires. No issues at all. Boarded on time, departed on time, smooth flight and attendants were great.

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 25m. Rio de Janeiro and Buenos Aires are separated by a distance of 1224 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Rio de Janeiro to Buenos Aires round-trip?

    Cheapflights users have booked flights from Rio de Janeiro to Buenos Aires round-trip from $71. Other airlines that can offer you cheap pricing are GOL, from $207, and Aerolineas Argentinas, from $278. Flybondi is priced at 74% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Rio de Janeiro to Buenos Aires one-way?

    For one-way options, check prices for JetSMART. According to our data, you can fly for as low as $62. Users have also found prices from $63 and $81 on Flybondi and LATAM Airlines, respectively.

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

    The most popular flight routes from Rio de Janeiro to Buenos Aires are Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery, Rio de Janeiro–Galeão Intl - Buenos Aires Ministro Pistarini and Rio de Janeiro Santos Dumont - Buenos Aires Jorge Newbery.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Rio de Janeiro to Buenos Aires on time: Air Canada (100%), GOL (97%), Finnair (97%).

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

    Looking at all options, your cheapest flight can be booked for $112. While the most popular route (Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery) can be booked for $253 on average, our data indicates $600 when flying from Rio de Janeiro to Buenos Aires.

  • 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 vacation 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 $218). Flying from Rio de Janeiro to Buenos Aires in February is currently the most expensive (average of $334). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Top 4 airlines flying from Rio de Janeiro to Buenos Aires

Discover the top 4 airlines that operate flights from Rio de Janeiro to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
FlybondiCheapest$71Average$276FlexibilityNo cancel feeOn-timeN/A
GOLCheapest$207Average$269FlexibilityNo cancel feeOn-time74%
Aerolineas ArgentinasCheapest$278Average$320FlexibilityNo cancel feeOn-time59%
British AirwaysCheapest$290Average$363FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.