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$76+ Cheap flights from Porto Alegre (POA) 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BUE
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Porto Alegre Salgado Filho to Buenos Aires are usually found in May or October, booked 39 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Porto Alegre to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$195
(SmartFares)

One-way from

$76
(Booking.com)

Popular in

December

Cheapest in

May

Average price

$272

Good round-trip deal

$222 or less

Good one-way deal

$86 or less
Provider with most accurate pricing for Porto Alegre Salgado Filho-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Buenos Aires (BUE) flights.
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From Porto Alegre Salgado Filho to Buenos Aires (BUE)
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One-way flight from Porto Alegre Salgado Filho to Buenos Aires (BUE)
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Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Porto Alegre Salgado Filho to Buenos Aires (BUE).
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Price to beat on a one-way flight from Porto Alegre Salgado Filho to Buenos Aires (BUE).
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Find flight deals from Porto Alegre to Buenos Aires

Cheapest flights from Porto Alegre to Buenos Aires
Explore the most affordable flight options available from Porto Alegre to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This SmartFares deal was found by Cheapflights users on 10/28. 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.
Tue 11/119:05 pmPOA - AEP
Nonstop1h 55mAerolineas Argentinas
Thu 11/134:50 amAEP - POA
Nonstop1h 40mAerolineas Argentinas
Deal found 10/28$195
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:05 pmPOA - AEP
Nonstop1h 55mMultiple Airlines
Fri 11/1410:00 pmAEP - POA
Nonstop1h 40mMultiple Airlines
Deal found 10/28$210
This Booking.com deal was found by Cheapflights users on 10/29. 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 11/177:00 amPOA - AEP
Nonstop2h 00mMultiple Airlines
Fri 11/2110:00 pmAEP - POA
Nonstop1h 40mMultiple Airlines
Deal found 10/29$224
This GOL deal was found by Cheapflights users on 10/28. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:10 amPOA - AEP
Nonstop1h 50mGOL
Fri 11/710:00 pmAEP - POA
Nonstop1h 40mGOL
Deal found 10/28$236
This GOL deal was found by Cheapflights users on 10/30. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/281:40 pmPOA - AEP
1 stop27h 40mGOL
Mon 12/110:00 pmAEP - POA
Nonstop1h 40mGOL
Deal found 10/30$239
This GOL deal was found by Cheapflights users on 10/29. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:10 amPOA - AEP
Nonstop1h 50mGOL
Sun 12/143:15 amAEP - POA
1 stop13h 15mGOL
Deal found 10/29$247
This GOL deal was found by Cheapflights users on 10/30. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:10 amPOA - AEP
Nonstop1h 50mGOL
Tue 11/186:20 pmAEP - POA
1 stop6h 35mGOL
Deal found 10/30$255
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:10 amPOA - AEP
Nonstop1h 50mMultiple Airlines
Tue 11/46:15 pmAEP - POA
Nonstop1h 40mMultiple Airlines
Deal found 10/30$256
This GOL deal was found by Cheapflights users on 10/28. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:45 pmPOA - AEP
1 stop27h 15mGOL
Mon 12/110:00 pmAEP - POA
Nonstop1h 40mGOL
Deal found 10/28$259
This GOL deal was found by Cheapflights users on 10/29. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:10 amPOA - AEP
Nonstop1h 50mGOL
Sun 12/73:40 amAEP - POA
1 stop13h 30mGOL
Deal found 10/29$264
This GOL deal was found by Cheapflights users on 10/30. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:05 amPOA - EZE
1 stop19h 45mGOL
Thu 11/203:30 amEZE - POA
1 stop8h 00mGOL
Deal found 10/30$304
This GOL deal was found by Cheapflights users on 10/30. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:30 amPOA - EZE
1 stop12h 50mGOL
Mon 12/156:15 pmEZE - POA
1 stop18h 45mGOL
Deal found 10/30$309

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre 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 October 30, 2025.
Use the filters below to find and compare flights from Porto Alegre to Buenos Aires that are best for you.

Fly from

Porto Alegre

Fly to

Buenos Aires

Route

Depart

Return

Price

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Fri 11/28

1:40 pm-5:20 pm

1 stop27h 40m

Buenos Aires Jorge Newbery

Mon 12/1

10:00 pm-11:40 pm

Nonstop1h 40m

$239

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Wed 11/26

5:45 pm-9:00 pm

1 stop27h 15m

Buenos Aires Jorge Newbery

Mon 12/1

10:00 pm-11:40 pm

Nonstop1h 40m

$259

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 11/27

11:40 am-9:00 pm

1 stop9h 20m

Buenos Aires Jorge Newbery

Mon 12/1

10:00 pm-11:40 pm

Nonstop1h 40m

$259

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 3/12

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Thu 3/19

1:40 pm-4:30 pm

1 stop26h 50m

$275

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 12/18

1:40 pm-9:00 pm

1 stop7h 20m

Buenos Aires Jorge Newbery

Mon 12/22

10:00 pm-11:40 pm

Nonstop1h 40m

$304

Porto AlegreBuenos Aires

POA - EZE

POAEZE

Porto Alegre Salgado Filho

Thu 3/12

1:40 pm-1:50 am

2 stops12h 10m

Buenos Aires Ministro Pistarini

Thu 3/19

6:15 pm-5:45 pm

1 stop23h 30m

$339

Porto AlegreBuenos Aires

POA - EZE

POAEZE

Porto Alegre Salgado Filho

Wed 3/11

1:40 pm-1:50 am

2 stops12h 10m

Buenos Aires Ministro Pistarini

Sun 3/15

6:15 pm-8:40 am

1 stop14h 25m

$356

Porto AlegreBuenos Aires

POA - EZE

POAEZE

Porto Alegre Salgado Filho

Thu 12/4

1:40 pm-1:50 am

2 stops12h 10m

Buenos Aires Ministro Pistarini

Sun 12/7

3:30 am-11:30 am

1 stop8h 00m

$362

Porto AlegreBuenos Aires

POA - EZE

POAEZE

Porto Alegre Salgado Filho

Thu 11/27

1:10 pm-1:50 am

2 stops12h 40m

Buenos Aires Ministro Pistarini

Sun 11/30

3:30 am-11:30 am

1 stop8h 00m

$362

Porto AlegreBuenos Aires

POA - EZE

POAEZE

Porto Alegre Salgado Filho

Thu 12/18

1:40 pm-1:50 am

2 stops12h 10m

Buenos Aires Ministro Pistarini

Sat 12/20

3:30 am-11:45 pm

1 stop20h 15m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 29 results
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Compare providers for flights from Porto Alegre 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 Porto Alegre to Buenos Aires in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Porto Alegre-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto Alegre-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto Alegre-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto Alegre-Buenos Aires flights, Cheapflights users trust eDreams the most. eDreams 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 Porto Alegre-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 Porto Alegre to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Porto Alegre 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 Porto Alegre to Buenos Aires

How far ahead should I book a flight from Porto Alegre to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Porto Alegre to Buenos Aires. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Porto Alegre to Buenos Aires, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Porto Alegre to Buenos Aires?

Currently, October is the cheapest month in which you can book a flight from Porto Alegre to Buenos Aires (average of $81). Flying from Porto Alegre to Buenos Aires in April is currently the most expensive (average of $316). 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 POA to BUE?

Find hourly flight availability from Porto Alegre 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 October 30, 2025.

When flying from Porto Alegre to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 October 30, 2025.
Read through reviews of airlines operating flights from Porto Alegre to Buenos Aires, such as Aerolineas Argentinas. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aerolineas Argentinas
8.1
Very good
957 reviews

Overall

8.1

Boarding

8.0

Entertainment

5.8

Crew

8.3

Comfort

7.6

Food

6.5

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
957 reviews
Aerolineas Argentinas
8.1
Very good
957 reviews

Overall

8.1

Boarding

8.0

Entertainment

5.8

Crew

8.3

Comfort

7.6

Food

6.5

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 Porto Alegre to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto Alegre to Buenos Aires?

    Located just 4.0 mi from the city center, Porto Alegre Salgado Filho is the airport most travelers will use when flying to Buenos Aires from Porto Alegre. Booking flights from Salgado Filho (POA) to Buenos Aires should be relatively easy as there is 1 daily outbound flight to Buenos Aires from 0 different airlines.

  • How long is the flight from Porto Alegre to Buenos Aires?

    There are many flights that can get you from Porto Alegre to Buenos Aires in 27h 40m. Fly via GOL to get the fastest option. There are 527 mi between Porto Alegre and Buenos Aires.

  • What are the cheapest airlines to fly from Porto Alegre to Buenos Aires one-way?

    The cheapest airlines for a one-way flight from Porto Alegre to Buenos Aires are Aerolineas Argentinas ($76), GOL ($81), and LATAM Airlines ($90).

  • Can I find deals for flights from Porto Alegre to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to Buenos Aires?

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

  • Can I find deals for business class flights from Porto Alegre to Buenos Aires?

    Yes. Cheapflights offers flight deals from Porto Alegre 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 Porto Alegre to Buenos Aires?

    Currently, October is the cheapest month in which you can book a flight from Porto Alegre to Buenos Aires (average of $81). Flying from Porto Alegre to Buenos Aires in April is currently the most expensive (average of $316). 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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