Cheap flights from London Heathrow Airport to Porto Alegre from £525
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Porto Alegre departing on 14/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Lufthansa flights from London Heathrow Airport to Porto Alegre
Our best Lufthansa deals on London Heathrow Airport to Porto Alegre flight tickets
LATAM Airlines flights from London Heathrow Airport to Porto Alegre
Our best LATAM Airlines deals on London Heathrow Airport to Porto Alegre flight tickets
See travel insights to Porto Alegre from
How to get the cheapest flight ticket from London Heathrow Airport to Porto Alegre
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Porto Alegre?
In general, March is the cheapest month to fly from London Heathrow Airport to Porto Alegre. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £799. If you aren’t able to travel during the month of March, then book flights to Porto Alegre from London Heathrow Airport during February instead. Flights to Porto Alegre in February, while not as cheap as those in March, still average around £801.
What is the cheapest day to depart on your flight to Porto Alegre?
On average, the least expensive day to fly to Porto Alegre from London Heathrow Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as £815. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £986.
What is the cheapest time of day to depart on your flight to Porto Alegre?
Our most recent data shows that the best time of day to fly to Porto Alegre is in the morning. Flights from London Heathrow Airport to Porto Alegre during this time can be as low as £858. Flights to Porto Alegre are more costly in the evening, with an average ticket price of £922. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Porto Alegre?
You are more likely to see cheaper flights to Porto Alegre from London Heathrow Airport when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around £1,019 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto Alegre from London Heathrow Airport for as low as £785 on momondo.
What is the cheapest airline that flies from London Heathrow to Porto Alegre Salgado Filho?
Lufthansa, TAP AIR PORTUGAL, and LATAM Airlines are the most popular carriers operating from London Heathrow to Porto Alegre Salgado Filho
Which airlines fly to Porto Alegre?
LATAM Airlines, TAP AIR PORTUGAL and Air France are the top three most popular airlines that fly to Porto Alegre from London Heathrow Airport according to our data. LATAM Airlines is the first choice among our users, with 78% of people opting to fly with this airline when travelling to Porto Alegre. Keep in mind that there are 3 different airlines that fly to Porto Alegre on a routine basis, so you have a few additional options to choose from.
When to book flights from London Heathrow Airport to Porto Alegre
Cheap London Heathrow Airport to Porto Alegre (LHR to POA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Porto Alegre
How far is London Heathrow to Porto Alegre Salgado Filho by plane?
The distance between London Heathrow and Porto Alegre Salgado Filho is about 6413.7 mi. 14h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from London Heathrow Airport to Porto Alegre Salgado Filho Airport?
Prices for flights from London Heathrow Airport to Porto Alegre Salgado Filho Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Porto Alegre Salgado Filho Airport?
The number of operators available for flights from London Heathrow Airport to Porto Alegre Salgado Filho Airport is 3 as of June 2025.
How old do you have to be to fly from London Heathrow Airport to Porto Alegre Salgado Filho Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Porto Alegre Salgado Filho Airport.
What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?
The required travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from London Heathrow Airport to Porto Alegre?
Based on momondo bookings for flights between London Heathrow Airport and Porto Alegre, the leading airline is LATAM Airlines, making up 76% of the total bookings. Other popular airlines include TAP AIR PORTUGAL with 13% and Air France with 11%.
Best airlines flying from London Heathrow Airport to Porto Alegre
Compare and see reviews for airlines that fly from London Heathrow Airport to Porto Alegre with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £624 | Free Cancellation | Rating 7.1 1,887 reviews | |||
| PriceFrom £637 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom £693 | Free Cancellation | Rating 7.5 1,785 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Porto Alegre?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto Alegre from London.
Can I find flights from London to Porto Alegre with flexible booking policies on momondo?
Yes. All flights to Porto Alegre from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Porto Alegre?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Porto Alegre.
I’m not ready to book a flight from London to Porto Alegre right now. Can momondo alert me if prices change?
Price alerts on flights to Porto Alegre from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.