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Cheap flights from Porto Alegre to London from £413

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 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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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
10:05 - 14:05
POA
-
LHR
25h 00m1 stop
LATAM Airlines Logo
06:00 - 23:25
LHR
-
POA
20h 25m2 stops
£617LATAM Airlines
Wed, 4 Mar - Tue, 10 Mar
LATAM Airlines Logo
14:55 - 14:05
POA
-
LHR
20h 10m2 stops
LATAM Airlines Logo
06:00 - 23:25
LHR
-
POA
20h 25m2 stops
£618LATAM Airlines
Wed, 4 Mar - Tue, 10 Mar
LATAM Airlines Logo
10:05 - 14:05
POA
-
LHR
25h 00m1 stop
LATAM Airlines Logo
06:15 - 00:25
LHR
-
POA
21h 10m2 stops
£619LATAM Airlines
Wed, 4 Mar - Thu, 12 Mar
LATAM Airlines Logo
14:55 - 14:05
POA
-
LHR
20h 10m2 stops
LATAM Airlines Logo
06:15 - 00:25
LHR
-
POA
21h 10m2 stops
£620LATAM Airlines
Wed, 4 Mar - Thu, 12 Mar
GOL Logo
12:50 - 16:35
POA
-
LHR
24h 45m2 stops
GOL Logo
09:00 - 09:55
LHR
-
POA
27h 55m2 stops
£626GOL
Sun, 1 Feb - Thu, 26 Feb
LATAM Airlines Logo
10:05 - 14:05
POA
-
LHR
25h 00m1 stop
LATAM Airlines Logo
20:15 - 14:05
LHR
-
POA
20h 50m1 stop
£633LATAM Airlines
Wed, 4 Mar - Tue, 10 Mar
LATAM Airlines Logo
14:55 - 14:05
POA
-
LHR
20h 10m2 stops
LATAM Airlines Logo
20:15 - 16:50
LHR
-
POA
23h 35m2 stops
£635LATAM Airlines
Wed, 4 Mar - Fri, 13 Mar
LATAM Airlines Logo
10:05 - 14:05
POA
-
LHR
25h 00m1 stop
LATAM Airlines Logo
20:15 - 14:05
LHR
-
POA
20h 50m1 stop
£636LATAM Airlines
Wed, 4 Mar - Mon, 9 Mar
GOL Logo
11:40 - 16:35
POA
-
LHR
25h 55m2 stops
GOL Logo
06:30 - 10:55
LHR
-
POA
31h 25m2 stops
£656GOL
Sun, 1 Feb - Thu, 26 Feb
GOL Logo
12:50 - 13:45
POA
-
LHR
21h 55m2 stops
GOL Logo
09:00 - 13:00
LHR
-
POA
31h 00m2 stops
£657GOL
Sun, 1 Feb - Thu, 26 Feb

TAP AIR PORTUGAL flights from Porto Alegre to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Porto Alegre to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
10 Mar
POA21:10Porto Alegre Salgado Filho
17h 20m
1 stop
LHR17:30London Heathrow
31 Mar
LHR08:00London Heathrow
17h 45m
1 stop
POA21:45Porto Alegre Salgado Filho
£669
Find similar
TAP AIR PORTUGAL
10 Mar
POA21:10Porto Alegre Salgado Filho
21h 25m
1 stop
LHR21:35London Heathrow
31 Mar
LHR08:00London Heathrow
17h 45m
1 stop
POA21:45Porto Alegre Salgado Filho
£678
Find similar
TAP AIR PORTUGAL
12 Mar
POA00:45Porto Alegre Salgado Filho
15h 10m
1 stop
LHR18:55London Heathrow
16 Apr
LHR06:00London Heathrow
18h 25m
1 stop
POA20:25Porto Alegre Salgado Filho
£680
Find similar

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
4 Mar
POA10:05Porto Alegre Salgado Filho
25h 00m
1 stop
LHR14:05London Heathrow
10 Mar
LHR06:00London Heathrow
20h 25m
2 stops
POA23:25Porto Alegre Salgado Filho
£617
Find similar
LATAM Airlines
4 Mar
POA14:55Porto Alegre Salgado Filho
20h 10m
2 stops
LHR14:05London Heathrow
10 Mar
LHR06:00London Heathrow
20h 25m
2 stops
POA23:25Porto Alegre Salgado Filho
£618
Find similar
LATAM Airlines
4 Mar
POA10:05Porto Alegre Salgado Filho
25h 00m
1 stop
LHR14:05London Heathrow
12 Mar
LHR06:15London Heathrow
21h 10m
2 stops
POA00:25Porto Alegre Salgado Filho
£619
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 11 December 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 4/3

10:05-14:05

1 stop25h 00m

London Heathrow

Tue 10/3

06:00-23:25

2 stops20h 25m

£617

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

14:55-14:05

2 stops20h 10m

London Heathrow

Tue 10/3

06:00-23:25

2 stops20h 25m

£618

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

10:05-14:05

1 stop25h 00m

London Heathrow

Thu 12/3

06:15-00:25

2 stops21h 10m

£619

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

14:55-14:05

2 stops20h 10m

London Heathrow

Thu 12/3

06:15-00:25

2 stops21h 10m

£620

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 1/2

12:50-16:35

2 stops24h 45m

London Heathrow

Thu 26/2

09:00-09:55

2 stops27h 55m

£626

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

10:05-14:05

1 stop25h 00m

London Heathrow

Tue 10/3

20:15-14:05

1 stop20h 50m

£633

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

14:55-14:05

2 stops20h 10m

London Heathrow

Fri 13/3

20:15-16:50

2 stops23h 35m

£635

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 4/3

10:05-14:05

1 stop25h 00m

London Heathrow

Mon 9/3

20:15-14:05

1 stop20h 50m

£636

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 1/2

11:40-16:35

2 stops25h 55m

London Heathrow

Thu 26/2

06:30-10:55

2 stops31h 25m

£656

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 1/2

12:50-13:45

2 stops21h 55m

London Heathrow

Thu 26/2

09:00-13:00

2 stops31h 00m

£657

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 £640. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from Porto Alegre averaging around £697.

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 £855 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 £647 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

Fastest flight time

17h 20m

Direct flights

None
The fastest flight from Porto Alegre to London Heathrow Airport takes 17h 20m
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.
Search flight deals

  • 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 17h 20m 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 £608Free CancellationRating
7.5
1,889 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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