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Cheap flights from Porto Alegre to London from £339

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
£618LATAM 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
£619LATAM Airlines
Wed, 4 Mar - Tue, 10 Mar
GOL Logo
12:50 - 16:35
POA
-
LHR
24h 45m2 stops
GOL Logo
09:00 - 09:55
LHR
-
POA
27h 55m2 stops
£627GOL
Sun, 1 Feb - Thu, 26 Feb
TAP AIR PORTUGAL Logo
21:10 - 17:30
POA
-
LHR
17h 20m1 stop
TAP AIR PORTUGAL Logo
08:00 - 21:45
LHR
-
POA
17h 45m1 stop
£651TAP AIR PORTUGAL
Tue, 10 Mar - Tue, 31 Mar
GOL Logo
12:50 - 13:45
POA
-
LHR
21h 55m2 stops
GOL Logo
09:00 - 09:55
LHR
-
POA
27h 55m2 stops
£658GOL
Sun, 1 Feb - Thu, 26 Feb
Multiple Airlines Logo
09:05 - 17:25
POA
-
LGW
28h 20m2 stops
Multiple Airlines Logo
12:50 - 16:20
LGW
-
POA
31h 30m3 stops
£770Multiple Airlines
Fri, 24 Apr - Sun, 24 May
KLM Logo
13:40 - 16:35
POA
-
LCY
23h 55m2 stops
KLM Logo
07:45 - 00:25
LCY
-
POA
19h 40m2 stops
£782KLM
Thu, 5 Mar - Thu, 12 Mar
TAP AIR PORTUGAL Logo
21:10 - 15:45
POA
-
LGW
15h 35m1 stop
TAP AIR PORTUGAL Logo
21:15 - 20:25
LGW
-
POA
51h 10m2 stops
£786TAP AIR PORTUGAL
Tue, 10 Mar - Tue, 31 Mar
KLM Logo
18:30 - 18:30
POA
-
LCY
20h 00m2 stops
KLM Logo
08:25 - 00:20
LCY
-
POA
19h 55m2 stops
£793KLM
Tue, 31 Mar - Fri, 10 Apr
Multiple Airlines Logo
11:40 - 10:55
POA
-
LCY
20h 15m2 stops
Multiple Airlines Logo
16:45 - 10:10
LCY
-
POA
20h 25m2 stops
£800Multiple Airlines
Sun, 1 Feb - Thu, 26 Feb

TAP AIR PORTUGAL flights from Porto Alegre to London

Our best TAP AIR PORTUGAL deals on Porto Alegre to London 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
£670
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
£679
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
£681
Find similar

LATAM Airlines flights from Porto Alegre to London

Our best LATAM Airlines deals on Porto Alegre to London 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
£618
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
£619
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 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 December 2025.
Use the filters below to find and compare flights from Porto Alegre to London 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

£618

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

£619

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

£627

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

21:10-17:30

1 stop17h 20m

London Heathrow

Tue 31/3

08:00-21:45

1 stop17h 45m

£651

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 1/2

12:50-13:45

2 stops21h 55m

London Heathrow

Thu 26/2

09:00-09:55

2 stops27h 55m

£658

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Fri 24/4

09:05-17:25

2 stops28h 20m

London Gatwick

Sun 24/5

12:50-16:20

3 stops31h 30m

£770

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Thu 5/3

13:40-16:35

2 stops23h 55m

London City

Thu 12/3

07:45-00:25

2 stops19h 40m

£782

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Tue 10/3

21:10-15:45

1 stop15h 35m

London Gatwick

Tue 31/3

21:15-20:25

2 stops51h 10m

£786

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 31/3

18:30-18:30

2 stops20h 00m

London City

Fri 10/4

08:25-00:20

2 stops19h 55m

£793

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Sun 1/2

11:40-10:55

2 stops20h 15m

London City

Thu 26/2

16:45-10:10

2 stops20h 25m

£800

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

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?

The cheapest month to fly to London from Porto Alegre is in February. Flight prices, which tend to average around £659, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Porto Alegre averaging around £690.

What is the cheapest day to depart on your flight to London?

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £746. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Porto Alegre to London for around £901.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £796. Flights in the evening are often more expensive, with an average ticket price of £832.

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

You are more likely to see cheaper flights to London from Porto Alegre when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from Porto Alegre for as low as £647 on momondo.

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

You could potentially save up to 32% on your flight if you consider stops on a Porto Alegre to London flight.

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

As of December 2025, prices for Porto Alegre to London flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Porto Alegre to London

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

Cheap Porto Alegre to London (POA to LON) flight deals and tips

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

Fastest flight time

18h 10m

Direct flights

None
The fastest flight from Porto Alegre to London takes 18h 10m
There are no direct flights from Porto Alegre to London. There are no popular flight routes from Porto Alegre to London.
Search flight deals

  • How far is Porto Alegre Salgado Filho to London by plane?

    The straight-line distance from Porto Alegre Salgado Filho to London is 6424.7 mi. Flights usually cover this in 14h 55m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    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.

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

    The travel and health documents required for your trip to London 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. 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?

Best airlines flying from Porto Alegre to London

Compare and see reviews for airlines that fly from Porto Alegre to London with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom £609Free CancellationRating
7.5
1,889 reviews
Search LATAM Airlines flights

Travelling to a place near London?

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Ipswich
Ilford
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Hayes
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Dover
Worthing
Colchester
Bedford
Ramsgate
Hounslow
Stansted

Why use momondo?

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

Finding the right flight to London from Porto Alegre is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Porto Alegre to London flights to just show those with 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?

Of course. momondo tracks the price of Porto Alegre to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport