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$116+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BUE
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 November, booked 72 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 February 11, 2026.

This GOL deal was found by Cheapflights users on 2/8. 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 2/106:20 am
POA
-
AEP
Nonstop1h 40m
GOL
Wed 2/1810:00 pm
AEP
-
POA
Nonstop1h 40m
GOL
Deal found 2/8$215
This GOL deal was found by Cheapflights users on 2/10. 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 2/196:20 am
POA
-
AEP
Nonstop1h 40m
GOL
Wed 2/256:20 pm
AEP
-
POA
1 stop23h 30m
GOL
Deal found 2/10$221
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/109:05 pm
POA
-
AEP
Nonstop1h 55m
Aerolineas Argentinas
Thu 3/196:30 pm
AEP
-
POA
Nonstop1h 40m
Aerolineas Argentinas
Deal found 2/10$245
This FlightHub deal was found by Cheapflights users on 2/8. 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 3/47:00 am
POA
-
AEP
Nonstop2h 00m
LATAM Airlines
Fri 3/1310:00 am
AEP
-
POA
Nonstop1h 35m
LATAM Airlines
Deal found 2/8$253
This Mytrip deal was found by Cheapflights users on 2/10. 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 3/109:05 pm
POA
-
AEP
Nonstop1h 55m
Multiple Airlines
Thu 3/198:30 pm
AEP
-
POA
1 stop26h 20m
Multiple Airlines
Deal found 2/10$268
This GOL deal was found by Cheapflights users on 2/8. 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 5/236:30 pm
POA
-
AEP
1 stop22h 50m
GOL
Tue 5/261:30 pm
AEP
-
POA
1 stop10h 25m
GOL
Deal found 2/8$287
This GOL deal was found by Cheapflights users on 2/8. 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 5/76:25 pm
POA
-
AEP
1 stop7h 15m
GOL
Tue 5/123:15 am
AEP
-
POA
1 stop12h 20m
GOL
Deal found 2/8$288
This GOL deal was found by Cheapflights users on 2/8. 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 5/56:00 am
POA
-
AEP
1 stop13h 30m
GOL
Tue 5/129:00 am
AEP
-
POA
1 stop9h 55m
GOL
Deal found 2/8$295
This GOL deal was found by Cheapflights users on 2/7. 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 8/253:45 pm
POA
-
EZE
1 stop20h 40m
GOL
Thu 9/31:15 pm
EZE
-
POA
1 stop10h 25m
GOL
Deal found 2/7$309
This GOL deal was found by Cheapflights users on 2/7. 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 2/176:20 am
POA
-
AEP
Nonstop1h 40m
GOL
Sat 2/211:40 pm
AEP
-
POA
1 stop21h 20m
GOL
Deal found 2/7$309
This GOL deal was found by Cheapflights users on 2/10. 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 8/133:45 pm
POA
-
EZE
1 stop20h 40m
GOL
Fri 8/211:15 pm
EZE
-
POA
1 stop10h 25m
GOL
Deal found 2/10$310
This GOL deal was found by Cheapflights users on 2/10. 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 4/95:10 pm
POA
-
AEP
1 stop16h 10m
GOL
Mon 4/138:30 pm
AEP
-
POA
1 stop18h 35m
GOL
Deal found 2/10$310

Find 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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$245
(Kiwi.com)

One-way from

$116
(GOL)

Popular in

July

Cheapest in

May

Average price

$268

Good round-trip deal

$268 or less

Good one-way deal

$125 or less
Provider with most accurate pricing for Porto Alegre Salgado Filho-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Buenos Aires (BUE) flights.
Search Deals
From Porto Alegre Salgado Filho to Buenos Aires (BUE)
Search Deals
One-way flight from Porto Alegre Salgado Filho to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Porto Alegre Salgado Filho to Buenos Aires (BUE).
Search Deals
Price to beat on a one-way flight from Porto Alegre Salgado Filho to Buenos Aires (BUE).
Search Deals

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 February 11, 2026.
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

Wed 3/4

7:00 am-9:00 am

Nonstop2h 00m

Buenos Aires Jorge Newbery

Fri 3/13

10:00 am-11:35 am

Nonstop1h 35m

$286

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Fri 6/19

11:20 am-5:20 pm

1 stop6h 00m

Buenos Aires Jorge Newbery

Mon 6/22

1:30 pm-11:55 pm

1 stop10h 25m

$286

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Sat 5/23

6:30 pm-5:20 pm

1 stop22h 50m

Buenos Aires Jorge Newbery

Tue 5/26

1:30 pm-11:55 pm

1 stop10h 25m

$287

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Wed 5/13

6:25 pm-5:20 pm

1 stop22h 55m

Buenos Aires Jorge Newbery

Sat 5/16

9:00 am-11:55 pm

1 stop14h 55m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Fri 5/8

11:20 am-5:20 pm

1 stop6h 00m

Buenos Aires Jorge Newbery

Sun 5/10

9:00 am-11:55 pm

1 stop14h 55m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Fri 5/15

2:00 pm-9:00 pm

1 stop7h 00m

Buenos Aires Jorge Newbery

Tue 5/19

9:00 am-6:55 pm

1 stop9h 55m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Mon 5/11

2:00 pm-9:00 pm

1 stop7h 00m

Buenos Aires Jorge Newbery

Fri 5/15

1:30 pm-3:35 pm

1 stop26h 05m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Tue 5/26

2:00 pm-1:40 am

1 stop11h 40m

Buenos Aires Jorge Newbery

Tue 6/2

1:30 pm-3:35 pm

1 stop26h 05m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Thu 5/7

6:25 pm-1:40 am

1 stop7h 15m

Buenos Aires Jorge Newbery

Tue 5/12

3:15 am-3:35 pm

1 stop12h 20m

$288

Porto AlegreBuenos Aires

POA - AEP

POAAEP

Porto Alegre Salgado Filho

Sat 4/11

11:50 am-9:00 pm

1 stop9h 10m

Buenos Aires Jorge Newbery

Thu 4/16

9:00 am-4:25 pm

1 stop7h 25m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 33 results
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  • Most accurate provider: When it comes to deals on Porto Alegre-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto Alegre-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 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 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 February 6, 2026.

To ensure you get the cheapest price possible for a flight from Porto Alegre to Buenos Aires, you should look to book at least 72 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 December is currently the most expensive (average of $228). 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 February 11, 2026.

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.

How much does it cost to fly round-trip from Porto Alegre to Buenos Aires?

How often are flights from Porto Alegre to Buenos Aires delayed?

About 13% of weekly flights between Porto Alegre and Buenos Aires have experienced delays in the past year, with the average delay time being 82 minutes.

What is the most punctual flight time for Porto Alegre to Buenos Aires flights?

Historically, flights departing in the early afternoon 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?

Friday 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 Porto Alegre to Buenos Aires flights?

Over the last year, Aerolineas Argentinas have had the lowest number of delays on this route, with just 14% of flights being delayed.

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 2h. Fly via LATAM Airlines or GOL to get the fastest option. There are 527 mi between Porto Alegre and Buenos Aires. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 December is currently the most expensive (average of $228). 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.

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