$132+ Cheap flights from Porto Alegre (POA) to Buenos Aires (BUE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BUE
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Porto Alegre 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 Porto Alegre Salgado Filho to Buenos Aires are usually found in May or March, booked 89 days in advance, depart on a Wednesday or Monday and return on a Wednesday
Cheap flight deals from Porto Alegre to Buenos Aires
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Best
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Cheapest flights from Porto Alegre to Buenos AiresExplore 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 15, 2026.
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 15, 2026.
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:10 am -
Nonstop1h 50m
Mon 10/55:55 am -
Nonstop1h 40m
Deal found 9/10![Multiple Airlines logo]()
$362
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:25 am -
Nonstop1h 55m
Thu 10/16:30 pm -
Nonstop1h 40m
Deal found 9/13![Aerolineas Argentinas logo]()
$366
This CheapOair deal was found by Cheapflights users on 9/11. 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 12/55:00 am -
1 stop9h 00m
Tue 12/86:30 pm -
Nonstop1h 40m
Deal found 9/11![Multiple Airlines logo]()
$372
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:40 am -
1 stop9h 05m
Mon 10/54:45 pm -
1 stop8h 30m
Deal found 9/10![LATAM Airlines logo]()
$373
This LATAM Airlines deal was found by Cheapflights users on 9/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am -
1 stop10h 45m
Wed 9/302:15 am -
1 stop17h 05m
Deal found 9/11![LATAM Airlines logo]()
$374
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:45 pm -
1 stop7h 20m
Sat 10/32:15 am -
1 stop14h 35m
Deal found 9/14![LATAM Airlines logo]()
$375
This LATAM Airlines deal was found by Cheapflights users on 9/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:50 pm -
1 stop12h 40m
Sun 10/410:20 am -
1 stop6h 30m
Deal found 9/11![LATAM Airlines logo]()
$375
This FlightHub deal was found by Cheapflights users on 9/12. 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 10/167:10 am -
Nonstop1h 50m
Tue 10/209:45 pm -
1 stop25h 40m
Deal found 9/12![LATAM Airlines logo]()
$377
This FlightHub deal was found by Cheapflights users on 9/12. 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.
Thu 10/16:45 pm -
2 stops21h 30m
Sun 10/45:05 pm -
1 stop19h 10m
Deal found 9/12![GOL logo]()
$386
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:10 am -
1 stop21h 50m
Mon 10/56:20 pm -
2 stops17h 20m
Deal found 9/10![GOL logo]()
$386
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Sat 12/55:05 am -
1 stop6h 45m
Mon 12/73:30 am -
1 stop19h 50m
Deal found 9/11![GOL logo]()
$387
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Sat 12/55:05 am -
1 stop7h 55m
Tue 12/89:00 am -
1 stop9h 55m
Deal found 9/11![GOL logo]()
$387
Best flights from Porto Alegre to Buenos AiresDiscover carefully curated flight deals from Porto Alegre to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Porto Alegre to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This GOL deal was found by Cheapflights users on 9/11. 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 10/295:05 am -
1 stop28h 15m
Sun 11/13:30 am -
1 stop20h 10m
Deal found 9/11![GOL logo]()
$403
This GOL deal was found by Cheapflights users on 9/11. 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 10/295:05 am -
1 stop20h 30m
Sun 11/13:30 am -
1 stop14h 30m
Deal found 9/11![GOL logo]()
$404
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:30 am -
1 stop21h 50m
Sat 11/213:20 am -
1 stop20h 30m
Deal found 9/14![GOL logo]()
$404
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:40 pm -
1 stop21h 40m
Sat 11/283:20 am -
1 stop20h 30m
Deal found 9/14![GOL logo]()
$405
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:30 am -
1 stop14h 30m
Thu 10/11:30 pm -
1 stop7h 05m
Deal found 9/13![GOL logo]()
$405
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 10/12:15 pm -
2 stops19h 05m
Sat 10/33:15 am -
1 stop12h 20m
Deal found 9/15![GOL logo]()
$443
This GOL deal was found by Cheapflights users on 9/11. 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 10/84:20 pm -
1 stop17h 00m
Mon 10/129:00 am -
1 stop25h 50m
Deal found 9/11![GOL logo]()
$444
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/209:10 pm -
1 stop14h 40m
Wed 2/242:20 pm -
2 stops16h 35m
Deal found 9/14![GOL logo]()
$448
This GOL deal was found by Cheapflights users on 9/12. 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 10/69:15 pm -
1 stop15h 10m
Mon 10/126:30 pm -
1 stop23h 15m
Deal found 9/12![GOL logo]()
$454
This GOL deal was found by Cheapflights users on 9/11. 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 10/810:35 am -
1 stop7h 05m
Mon 10/126:30 pm -
1 stop15h 20m
Deal found 9/11![GOL logo]()
$484
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 12/316:05 am -
1 stop7h 25m
Sat 1/22:20 pm -
2 stops9h 35m
Deal found 9/15![GOL logo]()
$502
This GOL deal was found by Cheapflights users on 9/12. 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.
Mon 11/234:05 pm -
2 stops9h 45m
Mon 11/303:25 am -
2 stops13h 25m
Deal found 9/12![GOL logo]()
$505
This GOL deal was found by Cheapflights users on 9/12. 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 2/184:05 pm -
2 stops21h 25m
Thu 2/252:20 pm -
2 stops20h 45m
Deal found 9/12![GOL logo]()
$512
This GOL deal was found by Cheapflights users on 9/11. 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 12/3111:30 am -
1 stop24h 20m
Sun 1/32:20 pm -
2 stops21h 30m
Deal found 9/11![GOL logo]()
$515
Last-minute flights from Porto Alegre to Buenos AiresDiscover last-minute flight deals from Porto Alegre to Buenos Aires. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Porto Alegre to Buenos Aires. Data last updated September 15, 2026 and is based on user searches.
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:25 am -
Nonstop1h 55m
Thu 10/16:30 pm -
Nonstop1h 40m
Deal found 9/13![Aerolineas Argentinas logo]()
$366
This LATAM Airlines deal was found by Cheapflights users on 9/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am -
1 stop10h 45m
Wed 9/302:15 am -
1 stop17h 05m
Deal found 9/11![LATAM Airlines logo]()
$374
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:10 am -
Nonstop1h 50m
Mon 10/55:55 am -
Nonstop1h 40m
Deal found 9/10![Multiple Airlines logo]()
$362
This LATAM Airlines deal was found by Cheapflights users on 9/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:10 am -
Nonstop1h 50m
Mon 10/510:25 am -
2 stops12h 40m
Deal found 9/10![LATAM Airlines logo]()
$372
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:40 am -
1 stop9h 05m
Mon 10/54:45 pm -
1 stop8h 30m
Deal found 9/10![LATAM Airlines logo]()
$373
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:10 am -
1 stop21h 50m
Mon 10/56:20 pm -
2 stops17h 20m
Deal found 9/10![GOL logo]()
$386
This LATAM Airlines 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:45 pm -
1 stop7h 20m
Sat 10/32:15 am -
1 stop14h 35m
Deal found 9/14![LATAM Airlines logo]()
$375
This LATAM Airlines deal was found by Cheapflights users on 9/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:50 pm -
1 stop12h 40m
Sun 10/410:20 am -
1 stop6h 30m
Deal found 9/11![LATAM Airlines logo]()
$375
This FlightHub deal was found by Cheapflights users on 9/12. 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.
Thu 10/16:45 pm -
2 stops21h 30m
Sun 10/45:05 pm -
1 stop19h 10m
Deal found 9/12![GOL logo]()
$386
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.
Thu 10/16:00 am -
1 stop20h 00m
Sun 10/46:20 pm -
2 stops15h 10m
Deal found 9/13![GOL logo]()
$387
This FlightHub deal was found by Cheapflights users on 9/12. 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 10/167:10 am -
Nonstop1h 50m
Tue 10/209:45 pm -
1 stop25h 40m
Deal found 9/12![LATAM Airlines logo]()
$377
This FlightHub deal was found by Cheapflights users on 9/12. 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 10/166:15 pm -
1 stop13h 45m
Tue 10/208:30 pm -
1 stop26h 15m
Deal found 9/12![GOL logo]()
$391
One-way flights from Porto Alegre to Buenos AiresSearch for one-way flight options from Porto Alegre to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Porto Alegre to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Mytrip deal was found by Cheapflights users on 9/10. 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 3/99:05 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Aerolineas Argentinas logo]()
$132
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/49:05 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Aerolineas Argentinas logo]()
$139
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1011:45 am -
2 stops12h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$147
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/49:05 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![GOL logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 3/29:05 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Aerolineas Argentinas logo]()
$153
This Booking.com deal was found by Cheapflights users on 9/11. 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 3/37:15 am -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![LATAM Airlines logo]()
$158
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Wed 3/35:15 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![GOL logo]()
$159
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.
Wed 3/1012:10 pm -
1 stop9h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$159
This LATAM Airlines deal was found by Cheapflights users on 9/10. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/38:05 am -
2 stops7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![LATAM Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 3/31:20 pm -
2 stops11h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$161
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Wed 3/35:40 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![GOL logo]()
$161
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/105:20 pm -
1 stop16h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![GOL logo]()
$162
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $362 (FlightHub) |
One-way from | $132 (Mytrip) |
Popular in | July |
Cheapest in | May |
Average price | $365 |
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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Porto Alegre to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Wed 3/10
12:10 pm-12:37 am
1 stop12h 27m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$148
Quickest round-trip
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - AEP Buenos Aires Jorge Newbery
POAAEP
Porto Alegre Salgado Filho
Wed 3/10
7:15 am-9:00 am
Nonstop1h 45m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Wed 3/3
1:20 pm-12:37 am
2 stops11h 17m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Wed 3/3
6:15 am-4:00 pm
1 stop9h 45m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - AEP Buenos Aires Jorge Newbery
POAAEP
Porto Alegre Salgado Filho
Wed 3/3
9:15 am-8:00 pm
1 stop10h 45m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - AEP Buenos Aires Jorge Newbery
POAAEP
Porto Alegre Salgado Filho
Sat 3/6
5:40 am-12:00 pm
1 stop6h 20m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - AEP Buenos Aires Jorge Newbery
POAAEP
Porto Alegre Salgado Filho
Wed 3/10
5:20 pm-10:00 pm
2 stops28h 40m
Buenos Aires Jorge Newbery
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$165
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Thu 3/11
6:30 am-5:27 pm
2 stops10h 57m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Mon 3/1
7:25 am-5:27 pm
2 stops10h 02m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Porto AlegreBuenos Aires
POA Porto Alegre Salgado Filho - EZE Buenos Aires Ministro Pistarini
POAEZE
Porto Alegre Salgado Filho
Wed 3/3
5:20 am-1:55 am
2 stops20h 35m
Buenos Aires Ministro Pistarini
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$185
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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.
POA-BUE
POA-EZE
POA-AEP
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
POA-BUE
POA-EZE
POA-AEP
What is the cheapest month to book a flight from Porto Alegre to Buenos Aires?
Currently, March is the cheapest month in which you can book a flight from Porto Alegre to Buenos Aires (average of $258). Flying from Porto Alegre to Buenos Aires in July is currently the most expensive (average of $400). 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 15, 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?
Airfare is typical for this route at the moment.
Porto Alegre to Buenos Aires flights typically cost between $326 and $428 in February.The cheapest round-trip price found within the last 5 days was $362 on GOL (Feb 18-Feb 25).
How often are flights from Porto Alegre to Buenos Aires delayed?
About 12% of weekly flights between Porto Alegre and Buenos Aires have experienced delays in the past year, with the average delay time being 95 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 Sunday 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, LATAM Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
How far ahead should I book a flight from Porto Alegre to Buenos Aires?
To ensure you get the cheapest price possible for a flight from Porto Alegre to Buenos Aires, you should look to book at least 87 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.
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.
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