Cheap Flights Buenos Aires to Porto Alegre from £159

Flight FAQs

• Which airlines offer the cheapest flights from Buenos Aires to Porto Alegre?

  Based on Trip.com data, Aerolineas Argentinas offers Cheapest nonstop one-way flights from £159 (for example, AEP–POA on Wed, Oct 21). For a Cheapest nonstop return flight, Aerolineas Argentinas offers fares from £254, departing on Wed, Nov 11 and returning on Tue, Nov 17.

• Which airlines offer direct flights from Buenos Aires to Porto Alegre?

  At the moment, you can catch a direct flight from Buenos Aires to Porto Alegre with the following airlines, including: LATAM Airlines Aerolineas Argentinas Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

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

  A flight from Buenos Aires (BUE) to Porto Alegre (POA) takes an average of 1 hour 38 minutes.

• When is the best time to book flights from Buenos Aires to Porto Alegre?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Buenos Aires to Porto Alegre is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there from Buenos Aires to Porto Alegre each week?

  On average, 15 direct flights operate each week between Buenos Aires and Porto Alegre. See below the schedules of the main airlines serving this route:
  LATAM Airlines: S/-/T/-/T/-/- – LA8129 (departure at 10:24)

• How can I find the best deals on flights from Buenos Aires to Porto Alegre?

  Here are some tips for finding the best flight deals from Buenos Aires to Porto Alegre on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Wed, Oct 21, with one-way fares from just £159.
  · Compare airlines. Aerolineas Argentinas currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. January is generally the busiest month for travel to Porto Alegre.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Buenos Aires to Porto Alegre to get the best price?

  The cheapest month to book a flight from Buenos Aires to Porto Alegre is usually October, when demand is lower.

• Which upcoming date is the cheapest for flights from Buenos Aires to Porto Alegre?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Buenos Aires to Porto Alegre on October 26, 2026 with Aerolineas Argentinas, with prices starting at £153.

• Which airports should you choose for flights from Buenos Aires to Porto Alegre?

  Flights to Porto Alegre can arrive at: Porto Alegre–Salgado Filho International Airport (POA). The most common route connects Jorge Newbery Airport and Porto Alegre–Salgado Filho International Airport (AEP–POA).

• What is the time difference between Buenos Aires and Porto Alegre?

  The time difference between Porto Alegre and Buenos Aires is 0m.

• How can I change or cancel my flight ticket from Buenos Aires to Porto Alegre?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from Buenos Aires to Porto Alegre?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Buenos Aires to Porto Alegre is £285. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Buenos Aires to Porto Alegre?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Buenos Aires to Porto Alegre is £377. Fares vary by travel date, airline and availability.

• How do I book flights from Buenos Aires to Porto Alegre on Trip.com?

  Enter Buenos Aires and Porto Alegre, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Buenos Aires to Porto Alegre route?

  Gol Linhas Aereas Inteligentesare the most popular budget airlines flying from Buenos Aires to Porto Alegre. Check baggage, seat and payment fees before comparing the final price.