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Cheap flights from Porto Alegre to London from £356

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 1/12. 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
12:20 - 14:05POA-LHR
22h 45m1 stop
LATAM Airlines Logo
20:15 - 16:50LHR-POA
23h 35m2 stops
£654LATAM Airlines
Find Deal
Mon, 16 Mar - Mon, 23 Mar
LATAM Airlines Logo
12:20 - 14:05POA-LHR
22h 45m1 stop
LATAM Airlines Logo
20:15 - 14:05LHR-POA
20h 50m1 stop
£655LATAM Airlines
Find Deal
Mon, 16 Mar - Sun, 22 Mar
Multiple Airlines Logo
05:00 - 14:05POA-LHR
30h 05m1 stop
Multiple Airlines Logo
19:55 - 23:25LHR-POA
30h 30m2 stops
£679Multiple Airlines
Find Deal
Thu, 20 Nov - Sat, 28 Feb
Lufthansa Logo
17:55 - 15:50POA-LHR
18h 55m2 stops
Lufthansa Logo
06:35 - 00:25LHR-POA
20h 50m2 stops
£736Lufthansa
Find Deal
Mon, 9 Mar - Wed, 18 Mar
KLM Logo
13:40 - 16:05POA-LHR
23h 25m2 stops
KLM Logo
08:40 - 00:40LHR-POA
20h 00m2 stops
£743KLM
Find Deal
Tue, 10 Mar - Tue, 31 Mar
KLM Logo
13:40 - 16:05POA-LHR
23h 25m2 stops
KLM Logo
06:30 - 00:40LHR-POA
22h 10m2 stops
£744KLM
Find Deal
Tue, 10 Mar - Tue, 31 Mar
Multiple Airlines Logo
13:40 - 16:05POA-LHR
23h 25m2 stops
Multiple Airlines Logo
06:20 - 23:30LHR-POA
20h 10m2 stops
£745Multiple Airlines
Find Deal
Tue, 10 Mar - Wed, 25 Mar
TAP AIR PORTUGAL Logo
21:55 - 22:55POA-LHR
21h 00m1 stop
TAP AIR PORTUGAL Logo
06:00 - 22:40LHR-POA
20h 40m1 stop
£754TAP AIR PORTUGAL
Find Deal
Thu, 9 Apr - Sat, 18 Apr
TAP AIR PORTUGAL Logo
00:45 - 21:35POA-LHR
17h 50m1 stop
TAP AIR PORTUGAL Logo
08:00 - 20:25LHR-POA
16h 25m1 stop
£774TAP AIR PORTUGAL
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Thu, 12 Mar - Thu, 16 Apr
Lufthansa Logo
14:35 - 17:05POA-LHR
22h 30m2 stops
Lufthansa Logo
07:25 - 09:20LHR-POA
29h 55m2 stops
£789Lufthansa
Find Deal
Wed, 1 Apr - Wed, 8 Apr

Lufthansa flights from Porto Alegre to London Heathrow Airport

Our best Lufthansa deals on Porto Alegre to London Heathrow Airport flight tickets
Lufthansa
9 Mar
POA17:55Porto Alegre Salgado Filho
18h 55m
2 stops
LHR15:50London Heathrow
18 Mar
LHR06:35London Heathrow
20h 50m
2 stops
POA00:25Porto Alegre Salgado Filho
£736
Find similar
Lufthansa
1 Apr
POA14:35Porto Alegre Salgado Filho
22h 30m
2 stops
LHR17:05London Heathrow
8 Apr
LHR07:25London Heathrow
29h 55m
2 stops
POA09:20Porto Alegre Salgado Filho
£789
Find similar
Lufthansa
20 Nov
POA12:30Porto Alegre Salgado Filho
17h 15m
2 stops
LHR08:45London Heathrow
30 Nov
LHR17:30London Heathrow
21h 05m
2 stops
POA11:35Porto Alegre Salgado Filho
£983
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KLM flights from Porto Alegre to London Heathrow Airport

Our best KLM deals on Porto Alegre to London Heathrow Airport flight tickets
KLM
10 Mar
POA13:40Porto Alegre Salgado Filho
23h 25m
2 stops
LHR16:05London Heathrow
31 Mar
LHR08:40London Heathrow
20h 00m
2 stops
POA00:40Porto Alegre Salgado Filho
£743
Find similar
KLM
10 Mar
POA13:40Porto Alegre Salgado Filho
23h 25m
2 stops
LHR16:05London Heathrow
31 Mar
LHR06:30London Heathrow
22h 10m
2 stops
POA00:40Porto Alegre Salgado Filho
£744
Find similar
KLM
10 Mar
POA13:40Porto Alegre Salgado Filho
23h 25m
2 stops
LHR16:05London Heathrow
25 Mar
LHR06:30London Heathrow
21h 15m
2 stops
POA00:45Porto Alegre Salgado Filho
£746
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 10 November 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

Mon 16/3

12:20-14:05

1 stop22h 45m

London Heathrow

Mon 23/3

20:15-16:50

2 stops23h 35m

£654

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 16/3

12:20-14:05

1 stop22h 45m

London Heathrow

Sun 22/3

20:15-14:05

1 stop20h 50m

£655

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 20/11

05:00-14:05

1 stop30h 05m

London Heathrow

Sat 28/2

19:55-23:25

2 stops30h 30m

£679

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 9/3

17:55-15:50

2 stops18h 55m

London Heathrow

Wed 18/3

06:35-00:25

2 stops20h 50m

£736

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

13:40-16:05

2 stops23h 25m

London Heathrow

Tue 31/3

08:40-00:40

2 stops20h 00m

£743

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

13:40-16:05

2 stops23h 25m

London Heathrow

Tue 31/3

06:30-00:40

2 stops22h 10m

£744

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 10/3

13:40-16:05

2 stops23h 25m

London Heathrow

Wed 25/3

06:20-23:30

2 stops20h 10m

£745

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 9/4

21:55-22:55

1 stop21h 00m

London Heathrow

Sat 18/4

06:00-22:40

1 stop20h 40m

£754

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 12/3

00:45-21:35

1 stop17h 50m

London Heathrow

Thu 16/4

08:00-20:25

1 stop16h 25m

£774

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 1/4

14:35-17:05

2 stops22h 30m

London Heathrow

Wed 8/4

07:25-09:20

2 stops29h 55m

£789

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 £644. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from Porto Alegre averaging around £706.

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 £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 Heathrow Airport from Porto Alegre for as low as £655 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

Direct flights

None
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.
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  • 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 14h 55m 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 £777Free CancellationRating
7.5
1,872 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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