Cheap flights from Porto Alegre to Buenos Aires
from 135 US$

From 371 USD — compare hundreds of airlines

We search 100+ flight sitesDirect flights~1h 34mReturn route: Buenos Aires → Porto Alegre

The cheapest month is usually 2026-09 · 135 US$

Live fares from 100+ sites — free, with no hidden fees.

About this route

Compare flights from Porto Alegre to Buenos Aires, a about 849 km route (around 1h 34m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Aerolineas Argentinas, Gol Transportes Aéreos, LATAM Airlines Brasil operate this route.

Nonstop time

1h 34m

Distance

849 km

Stops

Nonstop

Airlines

The airports on this route

Porto Alegre

Aeropuerto Internacional Salgado FilhoPOA

About 6 km from downtown Porto Alegre

Getting around: Taxis, apps and buses

Buenos Aires

Aeropuerto Internacional de Ezeiza (Ministro Pistarini)EZE

About 30 km from central Buenos Aires

Getting around: Direct buses, remises, taxis and apps

The long-haul international gateway; allow 45–75 min to the center.

Buenos Aires

Aeroparque Jorge NewberyAEP

About 6 km from downtown, on the riverfront

Getting around: Taxis, apps, city buses and remises

Domestic and regional, right in the city: usually the convenient one within the Southern Cone.

When to buy and when to fly

Prices by date

Fares found by date — cheapest days in green.

See prices for my dates →

135 US$

09/09

How to get the best price

1The sticker price is real — but it moves fastLow fares last hours or days. If the number works, search it today; waiting rarely improves it.

2Buy 4–8 weeks aheadThat window usually holds the best fares; holidays call for even more margin.

3Flexibility = moneyShifting departure 2–3 days can move the fare 100+ US$. Tuesdays and Wednesdays tend to be cheap.

Airlines on this route

Aerolineas Argentinas Gol Transportes Aéreos LATAM Airlines Brasil

FAQ

What's the cheapest month to fly Porto Alegre to Buenos Aires?

It's usually 2026-09, from 135 USD. Use the price calendar to compare other dates.

How long is the flight from Porto Alegre to Buenos Aires?

A nonstop flight takes about 1h 34m and covers around 849 km. Connecting itineraries take longer.

Are there direct flights from Porto Alegre to Buenos Aires?

Yes, this route has nonstop flights. Filter by "nonstop" to see them.

Which airlines fly from Porto Alegre to Buenos Aires?

Aerolineas Argentinas, Gol Transportes Aéreos, LATAM Airlines Brasil operate this route, among others. Compare them all in the results.

When should I book Porto Alegre–Buenos Aires flights?

As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.