Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Porto Alegre to London from £368

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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Porto Alegre to London

Cheap return flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
20:10 - 14:05POA-LHR
14h 55m1 stop
LATAM Airlines Logo
20:15 - 09:15LHR-POA
16h 00m1 stop
£674LATAM Airlines
Find Deal
Mon, 9 Mar - Mon, 23 Mar
LATAM Airlines Logo
20:10 - 14:05POA-LHR
14h 55m1 stop
LATAM Airlines Logo
20:15 - 12:50LHR-POA
19h 35m2 stops
£678LATAM Airlines
Find Deal
Mon, 9 Mar - Mon, 23 Mar
Multiple Airlines Logo
06:40 - 21:35POA-LHR
35h 55m2 stops
Multiple Airlines Logo
20:15 - 12:50LHR-POA
19h 35m2 stops
£708Multiple Airlines
Find Deal
Mon, 9 Mar - Mon, 23 Mar
Multiple Airlines Logo
09:05 - 23:55POA-STN
35h 50m2 stops
Multiple Airlines Logo
05:50 - 00:15STN-POA
21h 25m2 stops
£725Multiple Airlines
Find Deal
Fri, 30 Jan - Sat, 7 Feb
ITA Airways Logo
15:25 - 16:10POA-LCY
21h 45m2 stops
ITA Airways Logo
08:25 - 23:15LCY-POA
41h 50m2 stops
£727ITA Airways
Find Deal
Tue, 24 Feb - Tue, 3 Mar
ITA Airways Logo
05:30 - 10:55POA-LCY
50h 25m2 stops
ITA Airways Logo
08:25 - 08:45LCY-POA
51h 20m2 stops
£728ITA Airways
Find Deal
Wed, 18 Feb - Mon, 23 Feb
TAP AIR PORTUGAL Logo
21:55 - 18:50POA-LHR
16h 55m1 stop
TAP AIR PORTUGAL Logo
06:00 - 20:25LHR-POA
18h 25m1 stop
£756TAP AIR PORTUGAL
Find Deal
Thu, 2 Apr - Thu, 23 Apr
TAP AIR PORTUGAL Logo
21:10 - 21:35POA-LHR
21h 25m1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:40LHR-POA
16h 40m1 stop
£762TAP AIR PORTUGAL
Find Deal
Tue, 24 Feb - Tue, 3 Mar
Air Canada Logo
17:55 - 07:10POA-LHR
34h 15m2 stops
Air Canada Logo
15:50 - 16:10LHR-POA
28h 20m2 stops
£764Air Canada
Find Deal
Sun, 1 Mar - Thu, 30 Apr
Air Canada Logo
15:25 - 06:35POA-LHR
35h 10m2 stops
Air Canada Logo
17:40 - 16:10LHR-POA
26h 30m2 stops
£807Air Canada
Find Deal
Tue, 21 Apr - Thu, 30 Apr

LATAM Airlines flights from Porto Alegre to London

Our best LATAM Airlines deals on Porto Alegre to London flight tickets
LATAM Airlines
9 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
23 Mar
LHR20:15London Heathrow
16h 00m
1 stop
POA09:15Porto Alegre Salgado Filho
£674
Find similar
LATAM Airlines
9 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
23 Mar
LHR20:15London Heathrow
19h 35m
2 stops
POA12:50Porto Alegre Salgado Filho
£678
Find similar
LATAM Airlines
13 Mar
POA17:55Porto Alegre Salgado Filho
17h 10m
1 stop
LHR14:05London Heathrow
16 Apr
LHR21:20London Heathrow
16h 00m
1 stop
POA09:20Porto Alegre Salgado Filho
£754
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
2 Apr
POA21:55Porto Alegre Salgado Filho
16h 55m
1 stop
LHR18:50London Heathrow
23 Apr
LHR06:00London Heathrow
18h 25m
1 stop
POA20:25Porto Alegre Salgado Filho
£756
Find similar
TAP AIR PORTUGAL
24 Feb
POA21:10Porto Alegre Salgado Filho
21h 25m
1 stop
LHR21:35London Heathrow
3 Mar
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
£762
Find similar
TAP AIR PORTUGAL
16 Apr
POA21:55Porto Alegre Salgado Filho
21h 00m
1 stop
LHR22:55London Heathrow
15 May
LHR19:50London Heathrow
30h 50m
1 stop
POA22:40Porto Alegre Salgado Filho
£782
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 4 November 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

Mon 9/3

20:10-14:05

1 stop14h 55m

London Heathrow

Mon 23/3

20:15-09:15

1 stop16h 00m

£674

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 9/3

20:10-14:05

1 stop14h 55m

London Heathrow

Mon 23/3

20:15-12:50

2 stops19h 35m

£678

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 9/3

06:40-21:35

2 stops35h 55m

London Heathrow

Mon 23/3

20:15-12:50

2 stops19h 35m

£708

Porto AlegreLondon

POA - STN

POASTN

Porto Alegre Salgado Filho

Fri 30/1

09:05-23:55

2 stops35h 50m

London Stansted

Sat 7/2

05:50-00:15

2 stops21h 25m

£725

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 24/2

15:25-16:10

2 stops21h 45m

London City

Tue 3/3

08:25-23:15

2 stops41h 50m

£727

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Wed 18/2

05:30-10:55

2 stops50h 25m

London City

Mon 23/2

08:25-08:45

2 stops51h 20m

£728

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 2/4

21:55-18:50

1 stop16h 55m

London Heathrow

Thu 23/4

06:00-20:25

1 stop18h 25m

£756

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 24/2

21:10-21:35

1 stop21h 25m

London Heathrow

Tue 3/3

06:00-19:40

1 stop16h 40m

£762

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 1/3

17:55-07:10

2 stops34h 15m

London Heathrow

Thu 30/4

15:50-16:10

2 stops28h 20m

£764

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 21/4

15:25-06:35

2 stops35h 10m

London Heathrow

Thu 30/4

17:40-16:10

2 stops26h 30m

£807

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £664, 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 £682.

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 £756. 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 £914.

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 £807. Flights in the evening are often more expensive, with an average ticket price of £843.

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 £842 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 £649 on momondo.

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

You could potentially save up to 6% 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 November 2025, prices for Porto Alegre to London flights are approximately 19% 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

Direct flights

None
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 £779Free CancellationRating
7.5
1,873 reviews
Search LATAM Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Ramsgate
Bedford
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.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 4/12
Thu 11/12
By creating a price alert you accept our terms of use and privacy policy.

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