Porto Alegre to Buenos Aires

1 ways to travelfastest 1h 45mfly from €138
Photo: Barbara Zandoval / Unsplash

When is it cheapest to fly?

Nov: from €148 — show this month's calendar €148 NovJan: from €138 — show this month's calendar €138 Jan

How the cheapest fare moved

Nov 4: €138 €138 Nov 2 Nov 4 low €138 · high €148

Departure-day prices · September 2026 Porto Alegre → Buenos Aires

‹ Prev Next ›

Loading fares…

Return-day prices · September 2026 Buenos Aires → Porto Alegre

‹ Prev Next ›

Loading fares…

Best time to visit Buenos Aires — climate

Jan: ~30°C daytime, 7 rainy days 30° JanFeb: ~30°C daytime, 9 rainy days 30° FebMar: ~26°C daytime, 12 rainy days 26° MarApr: ~21°C daytime, 9 rainy days 21° AprMay: ~19°C daytime, 11 rainy days 19° MayJun: ~14°C daytime, 5 rainy days 14° JunJul: ~14°C daytime, 4 rainy days 14° JulAug: ~17°C daytime, 5 rainy days 17° AugSep: ~19°C daytime, 7 rainy days 19° SepOct: ~23°C daytime, 8 rainy days 23° OctNov: ~25°C daytime, 9 rainy days 25° NovDec: ~30°C daytime, 10 rainy days 30° Dec

Best value: Jan — fares from €138 and ~30°C daytime.

Flights from Porto Alegre to Buenos Aires start around €138 (direct flights available). Range seen recently: €138–154, based on 4 fares found by travellers.

Fly (from €138)
1h 45mduration
€138–154recent fares
Book
Cheapest cached fares Porto Alegre → Buenos Aires; direct flights available (e.g. AR). · Based on 4 fares found by travellers in the last 48h

Cheapest round trips to Buenos Aires

Fares found by travellers in the last 48 hours — refreshed daily.

Jul 10 – Jul 24 Aerolineas Argentinas · Direct · 1h 55m €301 Book
Dec 14 – Dec 24 Aerolineas Argentinas · Direct · 1h 55m €308 Book
Aug 10 – Aug 24 Aerolineas Argentinas · Direct · 1h 55m €309 Book
Aug 13 – Aug 27 LATAM Airlines Group · 1 stop · 4h 45m €330 Book
Nov 18 – Nov 25 LATAM Airlines Group · Direct · 1h 45m €334 Book
Dec 22 – Dec 29 Aerolineas Argentinas · Direct · 1h 55m €339 Book
Feb 13 – Feb 21 Gol Transportes Aéreos · 1 stop · 5h 15m €344 Book

Weather in Buenos Aires

Wed 🌧️ 25° 15° 💧31%
Thu ☁️ 26° 13° 💧0%
Fri 🌦️ 24° 17° 💧75%
Sat ☁️ 20° 12° 💧39%
Sun ☀️ 21° 11° 💧0%
Mon 🌤️ 23° 15° 💧0%
Tue 🌦️ 24° 18° 💧12%

In Sep, Buenos Aires typically sees ~19°C daytime highs and 6 rainy days.

Where to stay in Buenos Aires

3★+ hotels from €34/night (38 hotels sampled, ~3 weeks out).

Mérit San Telmo by Amérian hotel · Buenos Aires
from €34/night★ 3
See availability
M Concept Hotel hotel · Buenos Aires
from €42/night★ 4
See availability
1253 Recoleta Small Hotel hotel · Buenos Aires
from €44/night★ 4
See availability

Good to know

Time differenceSame time zone
Time in the air1h 45m

Things to do in Buenos Aires

Top-rated tours and tickets from €23 — book ahead for the popular ones.

from €82
Empanada Cooking Class in Buenos Aires★ 5.0 (135)
from €77
Buenos Aires: 7-Course Argentine Asado & Live Music★ 5.0 (104)
from €23
Buenos Aires: Take a Mate Break in 45 Minutes★ 5.0 (85)
from €127
Buenos Aires Like a Local: Private City Tour in Premium Car★ 5.0 (59)
from €130
Private Walking Tour of Buenos Aires South Neighborhoods★ 5.0 (58)
from €355
Sailing with Wine Tasting in Buenos Aires★ 5.0 (57)

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Buenos Aires

Buenos Aires is the capital of Argentina and one of Latin America's most culturally significant cities. It is a city of beautiful parks and belle epoque architecture, a place of big historical events, and a city of intimate cafes and cosmopolitan nightlife.

Read the full Buenos Aires guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

eSIM for Buenos AiresData from the moment you land — no roaming bills. Rent a car in Buenos AiresCompare local and international rental desks. Airport transferFixed-price pickup waiting at arrivals. Travel insuranceMedical + luggage cover from a few €/day.

Popular from Porto Alegre

Cheapest destinations travellers searched recently — refreshed daily.

from €91
Porto Alegre Sao Paulo
from €129
Porto Alegre Rio de Janeiro
from €153
Porto Alegre Florianopolis
from €237
Porto Alegre Foz do Iguaçu
from €241
Porto Alegre Belo Horizonte
from €250
Porto Alegre Salvador
from €265
Porto Alegre Curitiba
from €284
Porto Alegre Natal
from €294
Porto Alegre Recife
from €295
Porto Alegre Porto Velho
from €434
Porto Alegre Brasilia
from €454
Porto Alegre Joao Pessoa
from €464
Porto Alegre Ushuaia
from €816
Porto Alegre Orlando
from €819
Porto Alegre Punta Cana

Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-11-05. Some links earn Stayonomy a commission at no cost to you.