Which airport is the most popular for stopovers for flights between London Heathrow Airport and Porto Alegre?

Sao Paulo (GRU) was the most common stop: 88% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to Porto Alegre?

Flights via Sao Paulo (GRU) offer the lowest average return price of £1,153.

Which stopover airport has the shortest connection time from London Heathrow Airport to Porto Alegre?

Lisbon (LIS) has the shortest average stopover time for this route: 2h 38m.

What is the cheapest airline that flies from London Heathrow to Porto Alegre Salgado Filho?

TAP AIR PORTUGAL is the most popular carrier operating from London Heathrow to Porto Alegre Salgado Filho

Which stopover airport has the shortest travel time from London Heathrow Airport to Porto Alegre?

Flights connecting via Sao Paulo (GRU) have the shortest average one-way travel time: 16h 38m.

Which airlines fly to Porto Alegre?

LATAM Airlines, TAP AIR PORTUGAL and Virgin Atlantic 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 69% 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 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.

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.

£427 Cheap Flights from London Heathrow Airport to Porto Alegre in 2026

Discover deals from 900+ travel sites with momondo.

Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from London Heathrow Airport to Porto Alegre

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 00:15LHR London Heathrow-POA Porto Alegre Salgado Filho

21h 15m2 stops Lisbon Humberto Delgado Sao Paulo Viracopos

17:10 - 14:05POA Porto Alegre Salgado Filho-LHR London Heathrow

17h 55m1 stop Sao Paulo Guarulhos Intl

£825Multiple Airlines

Fri, 6 Nov - Sat, 21 Nov

19:50 - 08:15LHR London Heathrow-POA Porto Alegre Salgado Filho

40h 25m2 stops Lisbon Humberto Delgado Sao Paulo Viracopos

21:05 - 09:40POA Porto Alegre Salgado Filho-LHR London Heathrow

32h 35m2 stops Rio de Janeiro–Galeão Intl Rome Fiumicino

£838Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

06:55 - 09:20LHR London Heathrow-POA Porto Alegre Salgado Filho

30h 25m2 stops Munich Franz Josef Strauss Sao Paulo Guarulhos Intl

14:20 - 16:25POA Porto Alegre Salgado Filho-LHR London Heathrow

22h 05m2 stops Sao Paulo Guarulhos Intl Zurich

£855Multiple Airlines

Wed, 7 Oct - Thu, 22 Oct

18:30 - 00:20LHR London Heathrow-POA Porto Alegre Salgado Filho

32h 50m2 stops Lisbon Humberto Delgado Sao Paulo Guarulhos Intl

10:40 - 21:35POA Porto Alegre Salgado Filho-LHR London Heathrow

31h 55m2 stops Sao Paulo Guarulhos Intl Lisbon Humberto Delgado

£856Multiple Airlines

Fri, 6 Nov - Sat, 21 Nov

06:00 - 19:40LHR London Heathrow-POA Porto Alegre Salgado Filho

16h 40m1 stop Lisbon Humberto Delgado

21:10 - 17:30POA Porto Alegre Salgado Filho-LHR London Heathrow

17h 20m1 stop Lisbon Humberto Delgado

£951TAP AIR PORTUGAL

Sat, 20 Feb - Sat, 13 Mar

18:45 - 20:25LHR London Heathrow-POA Porto Alegre Salgado Filho

29h 40m1 stop Lisbon Humberto Delgado

00:15 - 22:00POA Porto Alegre Salgado Filho-LHR London Heathrow

17h 45m1 stop Lisbon Humberto Delgado

£960TAP AIR PORTUGAL

Wed, 9 Sep - Tue, 22 Sep

20:15 - 08:30LHR London Heathrow-POA Porto Alegre Salgado Filho

15h 15m1 stop Sao Paulo Guarulhos Intl

20:05 - 14:05POA Porto Alegre Salgado Filho-LHR London Heathrow

15h 00m1 stop Sao Paulo Guarulhos Intl

£966LATAM Airlines

Tue, 17 Nov - Tue, 2 Feb

06:00 - 19:40LHR London Heathrow-POA Porto Alegre Salgado Filho

16h 40m1 stop Lisbon Humberto Delgado

21:10 - 22:40POA Porto Alegre Salgado Filho-LHR London Heathrow

22h 30m1 stop Lisbon Humberto Delgado

£972TAP AIR PORTUGAL

Sat, 14 Nov - Sat, 5 Dec

06:15 - 00:10LHR London Heathrow-POA Porto Alegre Salgado Filho

21h 55m2 stops Madrid Barajas Sao Paulo Guarulhos Intl

20:05 - 15:05POA Porto Alegre Salgado Filho-LHR London Heathrow

15h 00m1 stop Sao Paulo Guarulhos Intl

£990LATAM Airlines

Wed, 7 Oct - Thu, 22 Oct

06:00 - 08:30LHR London Heathrow-POA Porto Alegre Salgado Filho

29h 30m2 stops Madrid Barajas Sao Paulo Guarulhos Intl

18:00 - 15:20POA Porto Alegre Salgado Filho-LHR London Heathrow

18h 20m2 stops Sao Paulo Guarulhos Intl Madrid Barajas

£994LATAM Airlines

Sat, 20 Feb - Sat, 13 Mar

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KLM flights from London Heathrow Airport to Porto Alegre

Our best KLM deals on London Heathrow Airport to Porto Alegre flight tickets

KLM

17 Nov

LHR06:30London Heathrow

20h 20m

2 stops

POA23:50Porto Alegre Salgado Filho

2 Feb

POA14:15Porto Alegre Salgado Filho

20h 35m

2 stops

LHR13:50London Heathrow

£938

KLM

9 Nov

LHR06:30London Heathrow

20h 20m

2 stops

POA23:50Porto Alegre Salgado Filho

23 Nov

POA17:25Porto Alegre Salgado Filho

17h 25m

2 stops

LHR13:50London Heathrow

£943

KLM

26 Nov

LHR06:30London Heathrow

20h 20m

2 stops

POA23:50Porto Alegre Salgado Filho

28 Jan

POA14:15Porto Alegre Salgado Filho

20h 35m

2 stops

LHR13:50London Heathrow

£974

LATAM Airlines flights from London Heathrow Airport to Porto Alegre

Our best LATAM Airlines deals on London Heathrow Airport to Porto Alegre flight tickets

LATAM Airlines

17 Nov

LHR20:15London Heathrow

15h 15m

1 stop

POA08:30Porto Alegre Salgado Filho

2 Feb

POA20:05Porto Alegre Salgado Filho

15h 00m

1 stop

LHR14:05London Heathrow

£966

LATAM Airlines

7 Oct

LHR06:15London Heathrow

21h 55m

2 stops

POA00:10Porto Alegre Salgado Filho

22 Oct

POA20:05Porto Alegre Salgado Filho

15h 00m

1 stop

LHR15:05London Heathrow

£990

LATAM Airlines

20 Feb

LHR06:00London Heathrow

29h 30m

2 stops

POA08:30Porto Alegre Salgado Filho

13 Mar

POA18:00Porto Alegre Salgado Filho

18h 20m

2 stops

LHR15:20London Heathrow

£994

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Fri 6/11

06:00-00:15

2 stops21h 15m

Porto Alegre Salgado Filho

Sat 21/11

17:10-14:05

1 stop17h 55m

£825

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Mon 12/10

19:50-08:15

2 stops40h 25m

Porto Alegre Salgado Filho

Mon 19/10

21:05-09:40

2 stops32h 35m

£838

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 7/10

06:55-09:20

2 stops30h 25m

Porto Alegre Salgado Filho

Thu 22/10

14:20-16:25

2 stops22h 05m

£855

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Fri 6/11

18:30-00:20

2 stops32h 50m

Porto Alegre Salgado Filho

Sat 21/11

10:40-21:35

2 stops31h 55m

£856

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Sat 20/2

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 13/3

21:10-17:30

1 stop17h 20m

£951

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 9/9

18:45-20:25

1 stop29h 40m

Porto Alegre Salgado Filho

Tue 22/9

00:15-22:00

1 stop17h 45m

£960

Fastest return journey

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Tue 17/11

20:15-08:30

1 stop15h 15m

Porto Alegre Salgado Filho

Tue 2/2

20:05-14:05

1 stop15h 00m

£966

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Sat 14/11

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 5/12

21:10-22:40

1 stop22h 30m

£972

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 7/10

06:15-00:10

2 stops21h 55m

Porto Alegre Salgado Filho

Thu 22/10

20:05-15:05

1 stop15h 00m

£990

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Sat 20/2

06:00-08:30

2 stops29h 30m

Porto Alegre Salgado Filho

Sat 13/3

18:00-15:20

2 stops18h 20m

£994

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Stopovers

What is the typical price of a round-trip flight between London Heathrow Airport and Porto Alegre?

Prices are currently typical for flights on this route.

Typical prices usually range from £754 to £988.
The lowest price recently found on this route was £825.

What is the cheapest month to fly to Porto Alegre?

In general, April 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 £762. If you aren’t able to travel during the month of April, then book flights to Porto Alegre from London Heathrow Airport during March instead. Flights to Porto Alegre in March, while not as cheap as those in April, still average around £844.

How far in advance should I book a flight from London Heathrow Airport to Porto Alegre?

You are more likely to see cheaper flights to Porto Alegre from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around £1,036 when searching weeks before you fly. 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 £712 on momondo.

Can stopping save me money on London Heathrow Airport to Porto Alegre flights?

You could potentially save up to 19% on your flight if you consider stops on a London Heathrow Airport to Porto Alegre flight.

When to book flights from London Heathrow Airport to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

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

Best price found	£427
Fastest flight time	16h 40m
Direct flights	None

The best one-way flight to Porto Alegre from London Heathrow Airport in the past 72 hours is £427. The best return flight deal from London Heathrow Airport to Porto Alegre found on momondo in the last 72 hours is £825.

The fastest flight from London Heathrow Airport to Porto Alegre takes 16h 40m

There are no direct flights from London Heathrow Airport to Porto Alegre. There are no popular flight routes from London Heathrow Airport to Porto Alegre.

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Frequently asked questions about flying 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. 16h 40m 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 August 2026.
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 69% of the total bookings. Other popular airlines include TAP AIR PORTUGAL with 20% and Virgin Atlantic with 12%.

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
TAP AIR PORTUGAL	PriceFrom £738	Free Cancellation	Rating 7.2 2,379 reviews	Search TAP AIR PORTUGAL flights
LATAM Airlines	PriceFrom £743	Free Cancellation	Rating 7.4 1,987 reviews	Search LATAM Airlines flights
Virgin Atlantic	PriceFrom £1,134	Free Cancellation	Rating 7.4 695 reviews	Search Virgin Atlantic flights

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.

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Cheap flights from London Heathrow Airport to Porto Alegre from £427

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KLM flights from London Heathrow Airport to Porto Alegre

Our best KLM 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

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Porto Alegre that are best for you.

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from London Heathrow Airport to Porto Alegre

What is the typical price of a round-trip flight between London Heathrow Airport and Porto Alegre?

What is the cheapest month to fly to Porto Alegre?

How far in advance should I book a flight from London Heathrow Airport to Porto Alegre?

Can stopping save me money on London Heathrow Airport to Porto Alegre flights?

What is the cheapest airline that flies from London Heathrow to Porto Alegre Salgado Filho?

Which airlines fly to Porto Alegre?

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Porto Alegre?

Which stopover airport offers the lowest fares from London Heathrow Airport to Porto Alegre?

Which stopover airport has the shortest travel time from London Heathrow Airport to Porto Alegre?

Which stopover airport has the shortest connection time from London Heathrow Airport to Porto Alegre?

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from London Heathrow Airport to Porto Alegre

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

Why use momondo?

An easier way to manage your Porto Alegre trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Brazil

Fly your favourite airline to Porto Alegre

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto Alegre

List of cabin classes available on flights landing in Porto Alegre. Availability may vary depending on flight origin and airline.

Popular Cities in Brazil

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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