Porto Alegre to Buenos Aires

1 ways to travelfastest 1h 55mfly from €137
Photo: Barbara Zandoval / Unsplash

How the cheapest fare moved

Oct 31: €150 €150 Oct 25 Oct 31 low €137 · high €164

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

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

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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

Flights from Porto Alegre to Buenos Aires start around €137 (direct flights available). Range seen recently: €137–164, based on 2 fares found by travellers.

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1h 55mduration
€137–164recent fares
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Cheapest cached fares Porto Alegre → Buenos Aires; direct flights available (e.g. AR). · Based on 2 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
Aug 10 – Aug 24 Aerolineas Argentinas · Direct · 1h 55m €305 Book
Dec 14 – Dec 24 Aerolineas Argentinas · Direct · 1h 55m €307 Book
Aug 13 – Aug 27 LATAM Airlines Group · 1 stop · 4h 45m €330 Book
Dec 22 – Dec 29 Gol Transportes Aéreos · 1 stop · 3h 15m €369 Book

Weather in Buenos Aires

Sat 🌦️ 21° 15° 💧8%
Sun 🌦️ 22° 17° 💧88%
Mon 🌧️ 25° 16° 💧73%
Tue 🌦️ 20° 17° 💧50%
Wed 🌤️ 25° 15° 💧49%
Thu ☀️ 25° 14° 💧10%
Fri 🌤️ 25° 14° 💧15%

In Oct, Buenos Aires typically sees ~23°C daytime highs and 8 rainy days.

Where to stay in Buenos Aires

3★+ hotels from €51/night (32 hotels sampled, ~3 weeks out).

1253 Recoleta Small Hotel hotel · Buenos Aires
from €51/night★ 4
See availability
Believe Madero Hotel hotel · Buenos Aires
from €52/night★ 4
See availability
M Concept Hotel hotel · Buenos Aires
from €52/night★ 4
See availability

Good to know

Time differenceSame time zone
Time in the air1h 55m

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 (103)
from €23
Buenos Aires: Take a Mate Break in 45 Minutes★ 5.0 (84)
from €127
Buenos Aires Like a Local: Private City Tour in Premium Car★ 5.0 (58)
from €130
Private Walking Tour of Buenos Aires South Neighborhoods★ 5.0 (57)
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

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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 2026-10-31. Some links earn Stayonomy a commission at no cost to you.