Cheap flights from Lisbon to Porto Alegre
Cheap return flights from Lisbon to Porto Alegre
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Porto Alegre flight facts
What you need to know
What are the cheapest airlines?
- LATAM Airlines
- Gol Linhas Aéreas
- TAP Air Portugal
These airlines usually offer the cheapest flights from Lisbon to Porto Alegre.
What airlines fly indirectly?
- Air France
- KLM
- Iberia
These airlines fly from Lisbon to Porto Alegre, but you’ll have at least one layover.
How long is the flight?
12 hours 30 minutes
This is the shortest flight time from Lisbon to Porto Alegre.
Alternative flights from the UK to Porto Alegre
Check out prices for other routes
Alternative flights from Lisbon
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Lisbon/Porto Alegre route. There are around 35 flights on any given week from the UK to Porto Alegre and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Lisbon to Porto Alegre
Tips and advice from our flight experts
You've searched for flights from Lisbon to Porto Alegre. We've found 25 flights and compared them to give you the best offers. LATAM Airlines is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for £64 from Lisbon to Porto Alegre on 16/05/2026 at 06:50.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 8,800 km flight from Lisbon to Porto Alegre.
To find the best offers, consider booking 2-3 months in advance. Look for flights during the off-peak season. LATAM Airlines is a popular choice for this route, with an average duration of 12 hours 30 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to save time and money!
Other popular destinations near Porto Alegre
Where other people are flying to
