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$76+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
RIO — BUE
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Rio de Janeiro to Buenos Aires are usually found in June or August, booked 80 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap 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 September 15, 2025.

Round-trip from

$229
(FlightHub)

One-way from

$76
(CheapOair)

Popular in

November

Cheapest in

June

Average price

$288

Good round-trip deal

$92 or less

Good one-way deal

$81 or less
From Rio de Janeiro (RIO) to Buenos Aires (BUE)
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One-way flight from Rio de Janeiro (RIO) to Buenos Aires (BUE)
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Highest demand for flights based on searches. 12% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Rio de Janeiro (RIO) to Buenos Aires (BUE).
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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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Find 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 September 15, 2025.

This FlightHub deal was found by Cheapflights users on 9/13. 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.
Wed 12/310:05 amGIG - AEP
Nonstop3h 25mFlybondi
Fri 12/512:10 amAEP - GIG
Nonstop2h 55mFlybondi
Deal found 9/13$229
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:05 amGIG - AEP
Nonstop3h 25mFlybondi
Sun 11/22:30 pmAEP - GIG
Nonstop2h 55mFlybondi
Deal found 9/13$233
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/3010:05 amGIG - AEP
Nonstop3h 25mFlybondi
Thu 11/62:30 pmAEP - GIG
Nonstop2h 55mFlybondi
Deal found 9/14$234
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:15 amGIG - EZE
Nonstop3h 25mFlybondi
Sun 9/288:00 pmEZE - GIG
Nonstop2h 55mFlybondi
Deal found 9/13$242
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:10 pmGIG - AEP
Nonstop3h 30mGOL
Mon 10/272:00 pmAEP - GIG
Nonstop2h 55mGOL
Deal found 9/13$249
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:50 pmGIG - EZE
Nonstop3h 21mJetSMART
Thu 11/612:54 pmEZE - GIG
Nonstop2h 56mJetSMART
Deal found 9/14$249
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Sat 10/410:05 amGIG - AEP
Nonstop3h 25mFlybondi
Tue 10/72:30 pmAEP - GIG
Nonstop2h 55mFlybondi
Deal found 9/14$250
This CheapOair deal was found by Cheapflights users on 9/13. 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 10/26:15 pmGIG - EZE
Nonstop3h 25mFlybondi
Sun 10/56:20 amEZE - GIG
Nonstop2h 55mFlybondi
Deal found 9/13$250
This Booking.com deal was found by Cheapflights users on 9/13. 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.
Mon 10/206:15 pmGIG - EZE
Nonstop3h 25mFlybondi
Wed 10/226:20 amEZE - GIG
Nonstop2h 55mFlybondi
Deal found 9/13$251
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Wed 9/247:15 amGIG - EZE
Nonstop3h 25mFlybondi
Thu 9/258:00 pmEZE - GIG
Nonstop2h 55mFlybondi
Deal found 9/15$252
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/210:05 amGIG - AEP
Nonstop3h 25mFlybondi
Thu 10/92:30 pmAEP - GIG
Nonstop2h 55mFlybondi
Deal found 9/14$253
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Tue 9/307:15 amGIG - EZE
Nonstop3h 25mFlybondi
Thu 10/306:20 amEZE - GIG
Nonstop2h 55mFlybondi
Deal found 9/14$254

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 September 15, 2025.
Use the filters below to find and compare flights from Rio de Janeiro to Buenos Aires that are best for you.

Fly from

Rio de Janeiro

Fly to

Buenos Aires

Route

Depart

Return

Price

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 10/24

10:10 pm-1:40 am

Nonstop3h 30m

Buenos Aires Jorge Newbery

Mon 10/27

2:00 pm-4:55 pm

Nonstop2h 55m

$264

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Wed 10/1

10:50 am-2:20 pm

Nonstop3h 30m

Buenos Aires Jorge Newbery

Thu 10/30

3:40 am-6:35 am

Nonstop2h 55m

$264

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Mon 10/27

6:00 am-9:20 am

Nonstop3h 20m

Buenos Aires Jorge Newbery

Thu 10/30

3:40 am-6:35 am

Nonstop2h 55m

$264

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Thu 10/23

10:10 pm-1:40 am

Nonstop3h 30m

Buenos Aires Jorge Newbery

Fri 10/31

10:30 am-1:25 pm

Nonstop2h 55m

$264

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 11/28

9:40 am-1:00 pm

Nonstop3h 20m

Buenos Aires Jorge Newbery

Mon 12/1

10:30 am-1:25 pm

Nonstop2h 55m

$264

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Thu 11/27

6:00 am-9:20 am

Nonstop3h 20m

Buenos Aires Jorge Newbery

Mon 12/1

10:30 am-1:25 pm

Nonstop2h 55m

$265

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Fri 10/3

10:50 am-2:20 pm

Nonstop3h 30m

Buenos Aires Jorge Newbery

Fri 10/10

3:50 pm-6:45 pm

Nonstop2h 55m

$287

Rio de JaneiroBuenos Aires

GIG - AEP

GIGAEP

Rio de Janeiro–Galeão Intl

Thu 10/23

10:10 pm-1:40 am

Nonstop3h 30m

Buenos Aires Jorge Newbery

Sun 10/26

3:40 am-6:35 am

Nonstop2h 55m

$288

Rio de JaneiroBuenos Aires

GIG - EZE

GIGEZE

Rio de Janeiro–Galeão Intl

Fri 10/17

7:55 am-11:25 am

Nonstop3h 30m

Buenos Aires Ministro Pistarini

Wed 10/22

1:55 pm-4:50 pm

Nonstop2h 55m

$288

Rio de JaneiroBuenos Aires

GIG - EZE

GIGEZE

Rio de Janeiro–Galeão Intl

Thu 11/27

1:50 pm-5:20 pm

Nonstop3h 30m

Buenos Aires Ministro Pistarini

Mon 12/1

6:15 pm-9:15 pm

Nonstop3h 00m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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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 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?

Use this chart to determine the optimal time to book a round-trip flight from Rio de Janeiro to Buenos Aires. Price data was last updated on September 12, 2025.

Booking 80 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, April is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of $795). Flying from Rio de Janeiro to Buenos Aires in December is currently the most expensive (average of $1,260). 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 September 15, 2025.

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 25% on your trip compared to booking a flight in the afternoon.

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 September 15, 2025.

The most flights from RIO to BUE are scheduled on a Friday (32 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

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

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 September 15, 2025.
Read through reviews of airlines operating flights from Rio de Janeiro to Buenos Aires, such as Aerolineas Argentinas, GOL, and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aerolineas Argentinas
8.1
Very good
931 reviews

Overall

8.1

Crew

8.3

Boarding

8.0

Food

6.5

Comfort

7.5

Entertainment

5.7

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
Aerolineas Argentinas
8.1
Very good
931 reviews
Aerolineas Argentinas
8.1
Very good
931 reviews

Overall

8.1

Crew

8.3

Boarding

8.0

Food

6.5

Comfort

7.5

Entertainment

5.7

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
GOL
7.3
Good
1,105 reviews
Aerolineas Argentinas
8.1
Very good
931 reviews

Overall

8.1

Crew

8.3

Boarding

8.0

Food

6.5

Comfort

7.5

Entertainment

5.7

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
British Airways
6.7
Okay
7,361 reviews
Aerolineas Argentinas
8.1
Very good
931 reviews

Overall

8.1

Crew

8.3

Boarding

8.0

Food

6.5

Comfort

7.5

Entertainment

5.7

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
JetSMART
6.5
Okay
225 reviews
Aerolineas Argentinas
8.1
Very good
931 reviews

Overall

8.1

Crew

8.3

Boarding

8.0

Food

6.5

Comfort

7.5

Entertainment

5.7

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500

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 30m. 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 $207. Other airlines that can offer you cheap pricing are JetSMART, from $208, and Flybondi, from $236. GOL is priced at 38% 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 Flybondi. According to our data, you can fly for as low as $76. Users have also found prices from $100 and $132 on GOL 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 Ministro Pistarini, Rio de Janeiro–Galeão Intl - Buenos Aires Jorge Newbery 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: Finnair (95%), Iberia (95%), British Airways (95%).

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

    Looking at all options, your cheapest flight can be booked for $66. While the most popular route (Rio de Janeiro–Galeão Intl - Buenos Aires Ministro Pistarini) can be booked for $269 on average, our data indicates $217 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, April is the cheapest month in which you can book a flight from Rio de Janeiro to Buenos Aires (average of $795). Flying from Rio de Janeiro to Buenos Aires in December is currently the most expensive (average of $1,260). 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
Rio de Janeiro–Galeão Intl to Jorge Newbery flights
Rio de Janeiro–Galeão Intl to San Carlos de Bariloche flights

Top 5 airlines flying from Rio de Janeiro to Buenos Aires

Discover the top 5 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
GOLCheapest$207Average$269FlexibilityNo cancel feeOn-time74%
JetSMARTCheapest$208Average$412FlexibilityNo cancel feeOn-timeN/A
FlybondiCheapest$236Average$386FlexibilityNo cancel feeOn-timeN/A
Aerolineas ArgentinasCheapest$278Average$409FlexibilityNo cancel feeOn-time59%
British AirwaysCheapest$346Average$374FlexibilityNo cancel feeOn-time70%

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