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Cheap flights from Porto Alegre to London from £376

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 20/11. 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
1 adult, Economy, 0 bags
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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from Porto Alegre to London

Cheap return flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
15:30 - 15:05
POA
-
LHR
19h 35m
2 stops
LATAM Airlines Logo
21:20 - 14:45
LHR
-
POA
21h 25m
2 stops
£658LATAM Airlines
Thu, 6 Aug - Thu, 27 Aug
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
LATAM Airlines Logo
21:20 - 23:15
LHR
-
POA
29h 55m
2 stops
£659LATAM Airlines
Sat, 1 Aug - Sat, 29 Aug
LATAM Airlines Logo
16:00 - 14:05
POA
-
LHR
19h 05m
1 stop
LATAM Airlines Logo
20:15 - 12:15
LHR
-
POA
19h 00m
1 stop
£659LATAM Airlines
Tue, 10 Nov - Thu, 26 Nov
LATAM Airlines Logo
17:25 - 14:05
POA
-
LHR
17h 40m
2 stops
LATAM Airlines Logo
20:15 - 08:30
LHR
-
POA
15h 15m
1 stop
£660LATAM Airlines
Thu, 12 Nov - Fri, 27 Nov
TAP AIR PORTUGAL Logo
01:40 - 21:35
POA
-
LHR
16h 55m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
£662TAP AIR PORTUGAL
Sat, 24 Oct - Tue, 10 Nov
TAP AIR PORTUGAL Logo
00:45 - 18:55
POA
-
LHR
15h 10m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
£664TAP AIR PORTUGAL
Thu, 12 Nov - Sat, 28 Nov
TAP AIR PORTUGAL Logo
21:10 - 17:30
POA
-
LHR
17h 20m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
£665TAP AIR PORTUGAL
Sat, 7 Nov - Tue, 17 Nov
TAP AIR PORTUGAL Logo
21:10 - 22:40
POA
-
LHR
22h 30m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
£671TAP AIR PORTUGAL
Tue, 10 Nov - Sat, 28 Nov
TAP AIR PORTUGAL Logo
01:40 - 10:20
POA
-
LHR
28h 40m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
£672TAP AIR PORTUGAL
Sat, 17 Oct - Tue, 3 Nov
Multiple Airlines Logo
05:30 - 11:25
POA
-
LHR
26h 55m
2 stops
Multiple Airlines Logo
18:30 - 20:05
LHR
-
POA
28h 35m
2 stops
£705Multiple Airlines
Thu, 12 Nov - Sun, 29 Nov

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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
6 Aug
POA15:30Porto Alegre Salgado Filho
19h 35m
2 stops
LHR15:05London Heathrow
27 Aug
LHR21:20London Heathrow
21h 25m
2 stops
POA14:45Porto Alegre Salgado Filho
£658
LATAM Airlines
1 Aug
POA20:05Porto Alegre Salgado Filho
15h 00m
1 stop
LHR15:05London Heathrow
29 Aug
LHR21:20London Heathrow
29h 55m
2 stops
POA23:15Porto Alegre Salgado Filho
£659
LATAM Airlines
10 Nov
POA16:00Porto Alegre Salgado Filho
19h 05m
1 stop
LHR14:05London Heathrow
1 Dec
LHR20:15London Heathrow
19h 00m
1 stop
POA12:15Porto Alegre Salgado Filho
£659

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
24 Oct
POA01:40Porto Alegre Salgado Filho
16h 55m
1 stop
LHR21:35London Heathrow
10 Nov
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
£662
TAP AIR PORTUGAL
12 Nov
POA00:45Porto Alegre Salgado Filho
15h 10m
1 stop
LHR18:55London Heathrow
28 Nov
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
£664
TAP AIR PORTUGAL
7 Nov
POA21:10Porto Alegre Salgado Filho
17h 20m
1 stop
LHR17:30London Heathrow
17 Nov
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
£665

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 10 July 2026.
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

Cheapest return flight

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 6/8

15:30-15:05

2 stops19h 35m

London Heathrow

Thu 27/8

21:20-14:45

2 stops21h 25m

£658

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 1/8

20:05-15:05

1 stop15h 00m

London Heathrow

Sat 29/8

21:20-23:15

2 stops29h 55m

£659

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/11

16:00-14:05

1 stop19h 05m

London Heathrow

Thu 26/11

20:15-12:15

1 stop19h 00m

£659

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 12/11

17:25-14:05

2 stops17h 40m

London Heathrow

Fri 27/11

20:15-08:30

1 stop15h 15m

£660

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 24/10

01:40-21:35

1 stop16h 55m

London Heathrow

Tue 10/11

06:00-19:40

1 stop16h 40m

£662
Fastest return journey

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 12/11

00:45-18:55

1 stop15h 10m

London Heathrow

Sat 28/11

06:00-19:40

1 stop16h 40m

£664

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 7/11

21:10-17:30

1 stop17h 20m

London Heathrow

Tue 17/11

06:00-19:40

1 stop16h 40m

£665

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/11

21:10-22:40

1 stop22h 30m

London Heathrow

Sat 28/11

06:00-19:40

1 stop16h 40m

£671

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 17/10

01:40-10:20

1 stop28h 40m

London Heathrow

Tue 3/11

06:00-19:40

1 stop16h 40m

£672

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 12/11

05:30-11:25

2 stops26h 55m

London Heathrow

Sun 29/11

18:30-20:05

2 stops28h 35m

£705

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, November 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 £657. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Porto Alegre averaging around £799.

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

You could potentially save up to 2% on your flight if you consider stops on a Porto Alegre to London Heathrow Airport flight.

How have Porto Alegre to London Heathrow Airport flight prices changed over time?

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

15h 00m

Direct flights

None
The fastest flight from Porto Alegre to London Heathrow Airport takes 15h 00m
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

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

  • 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 15h 00m 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 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.

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Northampton
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Swindon
Ilford
Folkestone
Canterbury
Poole
Guildford
Hayes
Hastings
Chichester

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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