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Cheap flights from Porto Alegre to London from £341

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
15:50 - 14:05
POA
-
LHR
19h 15m1 stop
LATAM Airlines Logo
06:05 - 00:40
LHR
-
POA
21h 35m2 stops
£643LATAM Airlines
Fri, 6 Mar - Sun, 15 Mar
LATAM Airlines Logo
20:10 - 14:05
POA
-
LHR
14h 55m1 stop
LATAM Airlines Logo
21:20 - 14:45
LHR
-
POA
21h 25m2 stops
£656LATAM Airlines
Tue, 10 Mar - Tue, 31 Mar
TAP AIR PORTUGAL Logo
21:10 - 09:50
POA
-
LGW
33h 40m1 stop
TAP AIR PORTUGAL Logo
21:15 - 20:25
LGW
-
POA
51h 10m2 stops
£755TAP AIR PORTUGAL
Tue, 10 Mar - Tue, 31 Mar
TAP AIR PORTUGAL Logo
01:40 - 09:45
POA
-
LGW
28h 05m1 stop
TAP AIR PORTUGAL Logo
10:35 - 22:40
LGW
-
POA
16h 05m1 stop
£761TAP AIR PORTUGAL
Sat, 2 May - Sat, 9 May
KLM Logo
18:25 - 18:30
POA
-
LCY
20h 05m2 stops
KLM Logo
09:20 - 23:55
LCY
-
POA
18h 35m2 stops
£790KLM
Tue, 12 May - Tue, 19 May
KLM Logo
18:25 - 16:40
POA
-
LCY
18h 15m2 stops
KLM Logo
08:25 - 23:55
LCY
-
POA
19h 30m2 stops
£821KLM
Tue, 12 May - Tue, 26 May
ITA Airways Logo
08:25 - 16:10
POA
-
LCY
28h 45m2 stops
ITA Airways Logo
08:25 - 11:00
LCY
-
POA
29h 35m2 stops
£830ITA Airways
Sun, 1 Feb - Thu, 26 Feb
ITA Airways Logo
14:05 - 16:10
POA
-
LCY
23h 05m2 stops
ITA Airways Logo
16:45 - 23:05
LCY
-
POA
33h 20m2 stops
£857ITA Airways
Thu, 5 Feb - Thu, 19 Feb
Multiple Airlines Logo
11:15 - 16:10
POA
-
LCY
25h 55m2 stops
Multiple Airlines Logo
11:30 - 14:25
LCY
-
POA
53h 55m2 stops
£875Multiple Airlines
Sat, 31 Jan - Sat, 28 Feb
Multiple Airlines Logo
12:30 - 09:15
POA
-
LCY
17h 45m2 stops
Multiple Airlines Logo
17:40 - 11:35
LCY
-
POA
20h 55m2 stops
£891Multiple Airlines
Mon, 9 Feb - Wed, 18 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
26 Feb
POA00:45Porto Alegre Salgado Filho
17h 50m
1 stop
LHR21:35London Heathrow
6 Mar
LHR19:55London Heathrow
26h 45m
1 stop
POA19:40Porto Alegre Salgado Filho
£724
Find similar
TAP AIR PORTUGAL
7 Mar
POA21:10Porto Alegre Salgado Filho
22h 30m
1 stop
LHR22:40London Heathrow
24 Mar
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
£728
Find similar
TAP AIR PORTUGAL
2 May
POA01:40Porto Alegre Salgado Filho
31h 05m
1 stop
LHR12:45London Heathrow
9 May
LHR06:00London Heathrow
20h 40m
1 stop
POA22:40Porto Alegre Salgado Filho
£737
Find similar

LATAM Airlines flights from Porto Alegre to London

Our best LATAM Airlines deals on Porto Alegre to London flight tickets
LATAM Airlines
6 Mar
POA15:50Porto Alegre Salgado Filho
19h 15m
1 stop
LHR14:05London Heathrow
15 Mar
LHR06:05London Heathrow
21h 35m
2 stops
POA00:40Porto Alegre Salgado Filho
£643
Find similar
LATAM Airlines
10 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
31 Mar
LHR21:20London Heathrow
21h 25m
2 stops
POA14:45Porto Alegre Salgado Filho
£656
Find similar
LATAM Airlines
10 Mar
POA10:05Porto Alegre Salgado Filho
25h 00m
1 stop
LHR14:05London Heathrow
31 Mar
LHR21:20London Heathrow
23h 35m
2 stops
POA16:55Porto Alegre Salgado Filho
£660
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 2 January 2026.
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 6/3

15:50-14:05

1 stop19h 15m

London Heathrow

Sun 15/3

06:05-00:40

2 stops21h 35m

£643

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

20:10-14:05

1 stop14h 55m

London Heathrow

Tue 31/3

21:20-14:45

2 stops21h 25m

£656

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Tue 10/3

21:10-09:50

1 stop33h 40m

London Gatwick

Tue 31/3

21:15-20:25

2 stops51h 10m

£755

Porto AlegreLondon

POA - LGW

POALGW

Porto Alegre Salgado Filho

Sat 2/5

01:40-09:45

1 stop28h 05m

London Gatwick

Sat 9/5

10:35-22:40

1 stop16h 05m

£761

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 12/5

18:25-18:30

2 stops20h 05m

London City

Tue 19/5

09:20-23:55

2 stops18h 35m

£790

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 12/5

18:25-16:40

2 stops18h 15m

London City

Tue 26/5

08:25-23:55

2 stops19h 30m

£821

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Sun 1/2

08:25-16:10

2 stops28h 45m

London City

Thu 26/2

08:25-11:00

2 stops29h 35m

£830

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Thu 5/2

14:05-16:10

2 stops23h 05m

London City

Thu 19/2

16:45-23:05

2 stops33h 20m

£857

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Sat 31/1

11:15-16:10

2 stops25h 55m

London City

Sat 28/2

11:30-14:25

2 stops53h 55m

£875

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Mon 9/2

12:30-09:15

2 stops17h 45m

London City

Wed 18/2

17:40-11:35

2 stops20h 55m

£891

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

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 November is another great option to travel to London, with average flight prices from Porto Alegre averaging around £682.

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 £846 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 £640 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 January 2026, prices for Porto Alegre to London flights are approximately 20% cheaper 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 18h 10m, 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 £602Free CancellationRating
7.5
1,899 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?

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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Find better results for your trip to the United Kingdom

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