Find cheap airlines flights from Buenos Aires to Porto Alegre

Choose from 2 carriers that fly from Buenos Aires to Porto Alegre, including LATAM Airlines, Aerolineas Argentinas, Enjoy the cheapest tickets on this route with Aerolineas Argentinas.

Book direct flights from Buenos Aires to Porto Alegre: One way flights from $133, round trip flights from $211. Find flight deals for the next 3 months below.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Buenos Aires to Porto Alegre

The distance between Buenos Aires and Porto Alegre is about 846.39 km. It takes around 1 hour 39 minutes on average to fly from Buenos Aires to Porto Alegre. The most popular month to Porto Alegre is July. The off-season for travel is August.

Cheapest one-way flight price$133
Cheapest round-trip ticket price$211
Off-season for travelAugust
Peak season for travelJuly
Flight distance846.39 km
Average flight time1 hour 39 minutes
Popular airlineLATAM Airlines

When is the cheapest time to fly from Buenos Aires to Porto Alegre?

The cheapest time for Buenos Aires to Porto Alegre flights: Dec 14 to Dec 21 — one way flight prices from $132.

Cheapest flights
From price
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  • 29
  • 916
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

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

    At the moment, you can catch a nonstop 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.
  • It takes around 1 hour 39 minutes to fly from Buenos Aires (BUE) to Porto Alegre (POA).
  • 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.
  • Based on Trip.com data in the past 4 weeks, there is 17 flight per week flying from Buenos Aires to Porto Alegre. You can check the weekly schedule for popular airlines on this route below: LATAM Airlines: S/M/T/W/T/F/- -- LA8129 (09:53)
  • The cheapest months to fly from Buenos Aires to Porto Alegre is August, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Buenos Aires to Porto Alegre on November 14, 2025 with Gol Linhas Aereas Inteligentes, with prices starting at $125.
  • You can land at any one of the following hubs in Porto Alegre, with Jorge Newbery Airport to Salgado Filho Porto Alegre International Airport (AEP-POA) is by far the most common option on this route: Salgado Filho Porto Alegre International Airport (POA).
  • The time difference between Porto Alegre and Buenos Aires is 0h.
  • Tickets can only be changed or canceled 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.