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$81+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BUE
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September, booked 72 days in advance, depart on a Thursday or Monday 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 September 17, 2025.

Round-trip from

$214
(GOL)

One-way from

$81
(GOL)

Popular in

December

Cheapest in

May

Average price

$284

Good one-way deal

$75 or less
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. 14% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 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 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 September 17, 2025.

This GOL deal was found by Cheapflights users on 9/16. 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 9/16$214
This GOL deal was found by Cheapflights users on 9/16. 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 11/271:40 pmPOA - AEP
1 stop12h 40mGOL
Wed 12/310:00 pmAEP - POA
Nonstop1h 40mGOL
Deal found 9/16$259
This GOL deal was found by Cheapflights users on 9/17. 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 10/811:05 amPOA - AEP
1 stop22h 15mGOL
Wed 10/2210:25 pmAEP - POA
Nonstop1h 30mGOL
Deal found 9/17$260
This GOL deal was found by Cheapflights users on 9/16. 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
Sat 11/86:20 pmAEP - POA
1 stop24h 20mGOL
Deal found 9/16$264
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:10 amPOA - AEP
Nonstop1h 50mGOL
Tue 11/119:00 amAEP - POA
1 stop7h 35mGOL
Deal found 9/15$266
This GOL deal was found by Cheapflights users on 9/16. 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 10/311:40 pmPOA - AEP
1 stop27h 40mGOL
Fri 11/710:00 pmAEP - POA
Nonstop1h 40mGOL
Deal found 9/16$274
This GOL deal was found by Cheapflights users on 9/17. 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 10/171:55 pmPOA - AEP
1 stop19h 25mGOL
Fri 10/2410:25 pmAEP - POA
Nonstop1h 30mGOL
Deal found 9/17$275
This GOL deal was found by Cheapflights users on 9/16. 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 10/76:10 amPOA - AEP
Nonstop1h 50mGOL
Tue 10/219:00 amAEP - POA
1 stop8h 45mGOL
Deal found 9/16$279
This GOL deal was found by Cheapflights users on 9/17. 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 10/146:10 amPOA - AEP
Nonstop1h 50mGOL
Tue 10/2110:20 amAEP - POA
1 stop7h 25mGOL
Deal found 9/17$280
This GOL deal was found by Cheapflights users on 9/17. 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 11/66:10 amPOA - AEP
Nonstop1h 50mGOL
Sun 11/910:00 pmAEP - POA
1 stop24h 50mGOL
Deal found 9/17$283
This GOL deal was found by Cheapflights users on 9/16. 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 10/306:05 amPOA - EZE
1 stop19h 45mGOL
Sun 11/23:30 amEZE - POA
1 stop20h 20mGOL
Deal found 9/16$317
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:05 amPOA - EZE
1 stop19h 45mGOL
Mon 11/103:30 amEZE - POA
1 stop8h 00mGOL
Deal found 9/15$319

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 September 17, 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

Tue 11/4

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Fri 11/7

10:00 pm-11:40 pm

Nonstop1h 40m

$214

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 10/30

6:25 pm-9:20 am

1 stop14h 55m

Buenos Aires Jorge Newbery

Mon 11/3

10:00 pm-11:40 pm

Nonstop1h 40m

$260

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Tue 11/11

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Fri 11/14

9:00 am-4:35 pm

1 stop7h 35m

$264

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 10/30

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Tue 11/11

9:00 am-4:35 pm

1 stop7h 35m

$266

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 11/6

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Sun 11/9

10:00 pm-10:50 pm

1 stop24h 50m

$268

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Fri 10/31

1:40 pm-5:20 pm

1 stop27h 40m

Buenos Aires Jorge Newbery

Fri 11/7

10:00 pm-11:40 pm

Nonstop1h 40m

$274

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Tue 11/4

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Sun 11/9

8:30 pm-10:50 pm

1 stop26h 20m

$284

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 10/9

8:15 pm-2:20 am

1 stop6h 05m

Buenos Aires Jorge Newbery

Tue 10/14

1:55 pm-4:15 pm

1 stop26h 20m

$310

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Wed 10/8

6:00 am-5:20 pm

1 stop11h 20m

Buenos Aires Jorge Newbery

Tue 10/21

3:40 am-11:40 pm

1 stop20h 00m

$310

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Tue 11/4

6:10 am-8:00 am

Nonstop1h 50m

Buenos Aires Jorge Newbery

Sat 11/8

8:30 pm-5:20 pm

2 stops20h 50m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 37 results
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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 September 12, 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, April is the cheapest month in which you can book a flight from Porto Alegre to Buenos Aires (average of $795). Flying from Porto Alegre 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 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 September 17, 2025.

When flying from Porto Alegre to Buenos Aires, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 10% versus a flight at noon.

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 17, 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
932 reviews

Boarding

8.0

Overall

8.1

Comfort

7.5

Crew

8.3

Entertainment

5.7

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
932 reviews
Aerolineas Argentinas
8.1
Very good
932 reviews

Boarding

8.0

Overall

8.1

Comfort

7.5

Crew

8.3

Entertainment

5.7

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 are 2 daily outbound flights 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 1h 50m. Fly via GOL to get the fastest option. There are 527 mi between Porto Alegre and Buenos Aires. Most flights are nonstop.

  • 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, April is the cheapest month in which you can book a flight from Porto Alegre to Buenos Aires (average of $795). Flying from Porto Alegre 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

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