$143 Find Cheap Flights from Porto Alegre to Buenos Aires - Compare and Save

These are the earliest and latest flight times available from Porto Alegre to Buenos Aires:

• Earliest: departs at 7:10 am and lands at 9:01 am
• Latest: departs at 9:05 pm and lands at 10:56 pm.

The flight takes about 1h 51m.

Only Economy Class is available on flights from Porto Alegre to Buenos Aires.

A nonstop flight from Porto Alegre to Buenos Aires takes 1h 51m, covering 528 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Porto Alegre to Buenos Aires range from $267 to $398, with an average of $330 over the past 12 months. Anything below $267 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 15% above the $330 route average. Book 13 weeks before departure for the lowest fares.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $313 round-trip, compared to $379 via a layover through Sao Paulo Guarulhos Intl (GRU).

GOL is slightly above the route average for timely arrivals, while LATAM Airlines has a lower on-time arrival rate. On-time arrival rates on Porto Alegre to Buenos Aires flights are:

• GOL: 100% on time
• LATAM Airlines: 87% on time
• Aerolineas Argentinas: 84% on time

Overall, flights on this route are punctual 88% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $34–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Morning is the busiest departure period on Porto Alegre to Buenos Aires flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $356 to $1,389. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Porto Alegre to Buenos Aires are currently higher than usual. Average one-way flight prices are about $163, which is 18% above the typical average for this route.

Since Buenos Aires is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Buenos Aires Ministro Pistarini Airport (EZE) — daily rates from around $15:

• Hertz
• Rentacar
• Street Rent a Car
• Alamo
• Localiza

Near Buenos Aires Jorge Newbery Airport (AEP) — daily rates from around $23:

• Hertz
• Alamo
• Localiza
• Rentacar
• Street Rent a Car

Flights from Porto Alegre to Buenos Aires usually depart from Porto Alegre Salgado Filho (POA) and may arrive at several airports in Buenos Aires area, including Buenos Aires Jorge Newbery (AEP) and Buenos Aires Ministro Pistarini (EZE).

Morning flights have the fewest delays on this route, while night departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Porto Alegre to Buenos Aires route, 12% of flights were delayed in the past 3 months, with delays averaging 1h 16m.

Connecting flights from Porto Alegre to Buenos Aires most commonly pass through:

• Sao Paulo Guarulhos Intl (GRU) - 68% of one-stop connections
• Rio de Janeiro–Galeão Intl (GIG) - 32% of one-stop connections

Yes. Flexible dates can save you up to 9% on flights from Porto Alegre to Buenos Aires. Monday is the cheapest departure day at $319 round-trip on average, while Friday is the most expensive at $350, a difference of $31.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Porto Alegre and Buenos Aires. The airlines offering nonstop flights on this route include:

• Aerolineas Argentinas
• LATAM Airlines

Flying via Sao Paulo Guarulhos Intl (GRU) gives the shortest average 1-stop total travel time at 8h 59m, compared with 13h via Rio de Janeiro–Galeão Intl (GIG).

Some of the most popular sights in Buenos Aires are Obelisco de Buenos Aires, Estadio Monumental and Parque Centenario. These are among the most viewed places in Buenos Aires on KAYAK.

Among airlines operating Porto Alegre to Buenos Aires flights:

• LATAM Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• LATAM Airlines: a cabin bag and a checked bag in Economy Class
• Aerolineas Argentinas: a cabin bag and a checked bag in Premium Economy Class
• GOL: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.