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Cheap flights from Porto Alegre to London from £352

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto Alegre to London departing on 1/12. 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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Find the cheapest flights from Porto Alegre to London

Cheap return flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
21:40 - 14:05POA-LHR
37h 25m2 stops
LATAM Airlines Logo
20:15 - 22:50LHR-POA
29h 35m2 stops
£645LATAM Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
LATAM Airlines Logo
20:10 - 14:05POA-LHR
14h 55m1 stop
LATAM Airlines Logo
20:15 - 09:15LHR-POA
16h 00m1 stop
£652LATAM Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
TAP AIR PORTUGAL Logo
21:10 - 21:35POA-LHR
21h 25m1 stop
TAP AIR PORTUGAL Logo
08:00 - 21:45LHR-POA
17h 45m1 stop
£731TAP AIR PORTUGAL
Find Deal
Tue, 10 Mar - Tue, 31 Mar
TAP AIR PORTUGAL Logo
21:10 - 21:35POA-LHR
21h 25m1 stop
TAP AIR PORTUGAL Logo
08:00 - 21:45LHR-POA
17h 45m1 stop
£732TAP AIR PORTUGAL
Find Deal
Tue, 10 Mar - Tue, 31 Mar
GOL Logo
11:40 - 13:45POA-LHR
23h 05m2 stops
GOL Logo
19:20 - 00:45LHR-POA
32h 25m2 stops
£734GOL
Find Deal
Fri, 30 Jan - Mon, 9 Feb
Multiple Airlines Logo
15:50 - 14:05POA-LHR
19h 15m1 stop
Multiple Airlines Logo
11:30 - 09:15LHR-POA
24h 45m2 stops
£780Multiple Airlines
Find Deal
Fri, 30 Jan - Mon, 9 Feb
Lufthansa Logo
17:55 - 17:05POA-LHR
20h 10m2 stops
Lufthansa Logo
17:30 - 13:15LHR-POA
22h 45m2 stops
£801Lufthansa
Find Deal
Mon, 1 Dec - Wed, 24 Dec
Multiple Airlines Logo
14:50 - 13:00POA-LHR
19h 10m2 stops
Multiple Airlines Logo
18:30 - 13:15LHR-POA
21h 45m2 stops
£819Multiple Airlines
Find Deal
Thu, 20 Nov - Sun, 30 Nov
Lufthansa Logo
14:35 - 14:40POA-LHR
20h 05m2 stops
Lufthansa Logo
18:30 - 09:20LHR-POA
18h 50m2 stops
£821Lufthansa
Find Deal
Tue, 7 Apr - Tue, 28 Apr
GOL Logo
13:40 - 13:45POA-LHR
21h 05m2 stops
GOL Logo
06:30 - 16:35LHR-POA
37h 05m2 stops
£826GOL
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Thu, 13 Nov - Thu, 20 Nov

LATAM Airlines flights from Porto Alegre to London Heathrow Airport

Our best LATAM Airlines deals on Porto Alegre to London Heathrow Airport flight tickets
LATAM Airlines
26 Nov
POA21:40Porto Alegre Salgado Filho
37h 25m
2 stops
LHR14:05London Heathrow
3 Dec
LHR20:15London Heathrow
29h 35m
2 stops
POA22:50Porto Alegre Salgado Filho
£645
Find similar
LATAM Airlines
26 Nov
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
3 Dec
LHR20:15London Heathrow
16h 00m
1 stop
POA09:15Porto Alegre Salgado Filho
£652
Find similar
LATAM Airlines
13 Mar
POA14:55Porto Alegre Salgado Filho
20h 10m
1 stop
LHR14:05London Heathrow
19 Apr
LHR21:20London Heathrow
20h 50m
2 stops
POA14:10Porto Alegre Salgado Filho
£741
Find similar

KLM flights from Porto Alegre to London Heathrow Airport

Our best KLM deals on Porto Alegre to London Heathrow Airport flight tickets
KLM
4 Nov
POA11:40Porto Alegre Salgado Filho
17h 00m
2 stops
LHR07:40London Heathrow
26 Nov
LHR06:30London Heathrow
20h 20m
2 stops
POA23:50Porto Alegre Salgado Filho
£632
Find similar
KLM
4 Nov
POA11:40Porto Alegre Salgado Filho
18h 20m
2 stops
LHR09:00London Heathrow
26 Nov
LHR06:30London Heathrow
20h 20m
2 stops
POA23:50Porto Alegre Salgado Filho
£663
Find similar
KLM
3 Nov
POA17:50Porto Alegre Salgado Filho
20h 10m
2 stops
LHR17:00London Heathrow
13 Nov
LHR06:30London Heathrow
20h 20m
2 stops
POA23:50Porto Alegre Salgado Filho
£827
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Porto Alegre to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Porto Alegre to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 26/11

21:40-14:05

2 stops37h 25m

London Heathrow

Wed 3/12

20:15-22:50

2 stops29h 35m

£645

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 26/11

20:10-14:05

1 stop14h 55m

London Heathrow

Wed 3/12

20:15-09:15

1 stop16h 00m

£652

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

21:10-21:35

1 stop21h 25m

London Heathrow

Tue 31/3

08:00-21:45

1 stop17h 45m

£731

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

21:10-21:35

1 stop21h 25m

London Heathrow

Tue 31/3

08:00-21:45

1 stop17h 45m

£732

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Fri 30/1

11:40-13:45

2 stops23h 05m

London Heathrow

Mon 9/2

19:20-00:45

2 stops32h 25m

£734

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Fri 30/1

15:50-14:05

1 stop19h 15m

London Heathrow

Mon 9/2

11:30-09:15

2 stops24h 45m

£780

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 1/12

17:55-17:05

2 stops20h 10m

London Heathrow

Wed 24/12

17:30-13:15

2 stops22h 45m

£801

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 20/11

14:50-13:00

2 stops19h 10m

London Heathrow

Sun 30/11

18:30-13:15

2 stops21h 45m

£819

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 7/4

14:35-14:40

2 stops20h 05m

London Heathrow

Tue 28/4

18:30-09:20

2 stops18h 50m

£821

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 13/11

13:40-13:45

2 stops21h 05m

London Heathrow

Thu 20/11

06:30-16:35

2 stops37h 05m

£826

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

What is the cheapest month to fly to London Heathrow Airport?

In general, February is the cheapest month to fly from Porto Alegre to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £631. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from Porto Alegre averaging around £698.

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

You are more likely to see cheaper flights to London Heathrow Airport from Porto Alegre when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £829 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Porto Alegre for as low as £641 on momondo.

When to book flights from Porto Alegre to London Heathrow Airport

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

Cheap Porto Alegre to London Heathrow Airport (POA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto Alegre to London Heathrow Airport

Direct flights

None
There are no direct flights from Porto Alegre to London Heathrow Airport. There are no popular flight routes from Porto Alegre to London Heathrow Airport.
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  • How far is Porto Alegre Salgado Filho to London Heathrow by plane?

    Porto Alegre Salgado Filho and London Heathrow are 6413.7 mi apart from one another. Typically, this will take 14h 55m by plane in normal conditions.

  • When did momondo last update prices for flights from Porto Alegre Salgado Filho Airport to London Heathrow Airport?

    Prices for flights from Porto Alegre Salgado Filho Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Porto Alegre Salgado Filho Airport to London Heathrow Airport?

  • How old do you have to be to fly from Porto Alegre Salgado Filho Airport to London Heathrow 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 Porto Alegre Salgado Filho Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Porto Alegre to London Heathrow Airport?

Best airlines flying from Porto Alegre to London Heathrow Airport

Compare and see reviews for airlines that fly from Porto Alegre to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom £769Free CancellationRating
7.5
1,871 reviews
Search LATAM Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Porto Alegre to London?

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 London from Porto Alegre.

Can I find flights from Porto Alegre to London with flexible booking policies on momondo?

All flight searches from Porto Alegre to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Porto Alegre to London?

momondo provides multiple filters to help you find the best flight to London from Porto Alegre. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Porto Alegre to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Porto Alegre and alert you when they change.

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