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Cheap flights from Porto Alegre to London from £423

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 22/1. 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
17:55 - 14:05POA-LHR
17h 10m1 stop
LATAM Airlines Logo
21:20 - 09:15LHR-POA
15h 55m1 stop
£634LATAM Airlines
Find Deal
Fri, 13 Mar - Sun, 19 Apr
LATAM Airlines Logo
17:55 - 14:05POA-LHR
17h 10m1 stop
LATAM Airlines Logo
21:20 - 09:15LHR-POA
15h 55m1 stop
£647LATAM Airlines
Find Deal
Fri, 13 Mar - Thu, 16 Apr
LATAM Airlines Logo
14:55 - 14:05POA-LHR
20h 10m2 stops
LATAM Airlines Logo
20:15 - 16:50LHR-POA
23h 35m2 stops
£669LATAM Airlines
Find Deal
Wed, 11 Mar - Sun, 15 Mar
GOL Logo
06:00 - 10:30POA-LHR
24h 30m2 stops
GOL Logo
08:40 - 23:55LHR-POA
19h 15m2 stops
£709GOL
Find Deal
Wed, 29 Apr - Wed, 13 May
Multiple Airlines Logo
15:15 - 00:50POA-STN
30h 35m2 stops
Multiple Airlines Logo
05:55 - 16:50STN-POA
37h 55m3 stops
£743Multiple Airlines
Find Deal
Sun, 1 Feb - Tue, 10 Feb
Multiple Airlines Logo
15:15 - 00:50POA-STN
30h 35m2 stops
Multiple Airlines Logo
19:45 - 20:00STN-POA
27h 15m2 stops
£754Multiple Airlines
Find Deal
Sun, 1 Feb - Tue, 10 Feb
ITA Airways Logo
10:35 - 10:55POA-LCY
21h 20m2 stops
ITA Airways Logo
08:25 - 10:15LCY-POA
28h 50m2 stops
£802ITA Airways
Find Deal
Sun, 1 Feb - Tue, 10 Feb
ITA Airways Logo
06:30 - 10:55POA-LCY
25h 25m2 stops
ITA Airways Logo
16:45 - 08:45LCY-POA
43h 00m2 stops
£843ITA Airways
Find Deal
Fri, 30 Jan - Sun, 8 Feb
TAP AIR PORTUGAL Logo
15:25 - 20:40POA-LGW
26h 15m2 stops
TAP AIR PORTUGAL Logo
16:35 - 19:40LGW-POA
30h 05m1 stop
£874TAP AIR PORTUGAL
Find Deal
Thu, 12 Mar - Mon, 16 Mar
TAP AIR PORTUGAL Logo
00:45 - 15:45POA-LGW
36h 00m1 stop
TAP AIR PORTUGAL Logo
10:40 - 19:40LGW-POA
36h 00m1 stop
£878TAP AIR PORTUGAL
Find Deal
Thu, 26 Feb - Fri, 6 Mar

LATAM Airlines flights from Porto Alegre to London

Our best LATAM Airlines deals on Porto Alegre to London flight tickets
LATAM Airlines
13 Mar
POA17:55Porto Alegre Salgado Filho
17h 10m
1 stop
LHR14:05London Heathrow
19 Apr
LHR21:20London Heathrow
15h 55m
1 stop
POA09:15Porto Alegre Salgado Filho
£634
Find similar
LATAM Airlines
9 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
18 Mar
LHR13:25London Heathrow
25h 10m
2 stops
POA11:35Porto Alegre Salgado Filho
£636
Find similar
LATAM Airlines
13 Mar
POA17:55Porto Alegre Salgado Filho
17h 10m
1 stop
LHR14:05London Heathrow
16 Apr
LHR21:20London Heathrow
15h 55m
1 stop
POA09:15Porto Alegre Salgado Filho
£647
Find similar

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
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
£806
Find similar
TAP AIR PORTUGAL
12 Mar
POA15:25Porto Alegre Salgado Filho
26h 15m
2 stops
LGW20:40London Gatwick
16 Mar
LGW16:35London Gatwick
30h 05m
1 stop
POA19:40Porto Alegre Salgado Filho
£874
Find similar
TAP AIR PORTUGAL
26 Feb
POA00:45Porto Alegre Salgado Filho
36h 00m
1 stop
LGW15:45London Gatwick
6 Mar
LGW10:40London Gatwick
36h 00m
1 stop
POA19:40Porto Alegre Salgado Filho
£878
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 3 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

Fri 13/3

17:55-14:05

1 stop17h 10m

London Heathrow

Sun 19/4

21:20-09:15

1 stop15h 55m

£634

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Fri 13/3

17:55-14:05

1 stop17h 10m

London Heathrow

Thu 16/4

21:20-09:15

1 stop15h 55m

£647

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 11/3

14:55-14:05

2 stops20h 10m

London Heathrow

Sun 15/3

20:15-16:50

2 stops23h 35m

£669

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 29/4

06:00-10:30

2 stops24h 30m

London Heathrow

Wed 13/5

08:40-23:55

2 stops19h 15m

£709

Porto AlegreLondon

POA - STN

POASTN

Porto Alegre Salgado Filho

Sun 1/2

15:15-00:50

2 stops30h 35m

London Stansted

Tue 10/2

05:55-16:50

3 stops37h 55m

£743

Porto AlegreLondon

POA - STN

POASTN

Porto Alegre Salgado Filho

Sun 1/2

15:15-00:50

2 stops30h 35m

London Stansted

Tue 10/2

19:45-20:00

2 stops27h 15m

£754

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Sun 1/2

10:35-10:55

2 stops21h 20m

London City

Tue 10/2

08:25-10:15

2 stops28h 50m

£802

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Fri 30/1

06:30-10:55

2 stops25h 25m

London City

Sun 8/2

16:45-08:45

2 stops43h 00m

£843

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Thu 12/3

15:25-20:40

2 stops26h 15m

London Gatwick

Mon 16/3

16:35-19:40

1 stop30h 05m

£874

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Thu 26/2

00:45-15:45

1 stop36h 00m

London Gatwick

Fri 6/3

10:40-19:40

1 stop36h 00m

£878

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 £652, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Porto Alegre averaging around £678.

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 £752. 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 £909.

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 £802. Flights in the evening are often more expensive, with an average ticket price of £839.

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 £847 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 £653 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

16h 35m

Direct flights

None
The fastest flight from Porto Alegre to London takes 16h 35m
There are no direct flights from Porto Alegre to London. There are no popular flight routes from Porto Alegre to London.
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  • 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 £614Free CancellationRating
7.5
1,890 reviews
Search LATAM Airlines flights

Travelling to a place near London?

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Worthing
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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