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Cheap flights from the United Kingdom to Porto Alegre from £374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Porto Alegre departing on 1/9. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from the United Kingdom to Porto Alegre

Recent return flight deals from the United Kingdom to Porto Alegre

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:40 - 21:50
LHR
-
POA
27h 10m
2 stops
Multiple Airlines Logo
16:55 - 14:05
POA
-
LHR
18h 10m
1 stop
£813Multiple Airlines
Thu, 12 Nov - Sat, 28 Nov
Multiple Airlines Logo
22:05 - 22:45
LHR
-
POA
28h 40m
2 stops
Multiple Airlines Logo
17:10 - 14:05
POA
-
LHR
17h 55m
1 stop
£814Multiple Airlines
Tue, 29 Sep - Tue, 27 Oct
Multiple Airlines Logo
21:40 - 21:50
LHR
-
POA
27h 10m
2 stops
Multiple Airlines Logo
15:45 - 14:05
POA
-
LHR
19h 20m
1 stop
£816Multiple Airlines
Thu, 12 Nov - Sat, 28 Nov
LATAM Airlines Logo
20:15 - 17:15
LHR
-
POA
24h 00m
1 stop
LATAM Airlines Logo
19:50 - 14:05
POA
-
LHR
15h 15m
1 stop
£824LATAM Airlines
Thu, 12 Nov - Sat, 28 Nov
LATAM Airlines Logo
20:15 - 08:30
LHR
-
POA
15h 15m
1 stop
LATAM Airlines Logo
19:50 - 14:05
POA
-
LHR
15h 15m
1 stop
£839LATAM Airlines
Thu, 12 Nov - Sat, 28 Nov
KLM Logo
08:25 - 23:40
LCY
-
POA
19h 15m
2 stops
KLM Logo
14:05 - 19:45
POA
-
LCY
25h 40m
2 stops
£869KLM
Thu, 3 Sep - Sun, 27 Sep
Turkish Airlines Logo
06:30 - 21:50
LGW
-
POA
42h 20m
2 stops
Turkish Airlines Logo
19:50 - 09:10
POA
-
LGW
58h 20m
2 stops
£932Turkish Airlines
Wed, 25 Nov - Sun, 29 Nov
Turkish Airlines Logo
10:05 - 21:50
LGW
-
POA
38h 45m
2 stops
Turkish Airlines Logo
19:50 - 09:10
POA
-
LGW
34h 20m
2 stops
£932Turkish Airlines
Wed, 25 Nov - Sun, 29 Nov
KLM Logo
08:25 - 23:25
LCY
-
POA
19h 00m
2 stops
KLM Logo
18:40 - 18:30
POA
-
LCY
19h 50m
2 stops
£969KLM
Fri, 4 Sep - Sat, 19 Sep
TAP AIR PORTUGAL Logo
10:40 - 07:15
LGW
-
POA
47h 35m
2 stops
TAP AIR PORTUGAL Logo
21:10 - 09:50
POA
-
LGW
33h 40m
1 stop
£1,008TAP AIR PORTUGAL
Thu, 12 Nov - Sat, 28 Nov

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TAP AIR PORTUGAL flights from United Kingdom to Porto Alegre

Our best TAP AIR PORTUGAL deals on United Kingdom to Porto Alegre flight tickets
TAP AIR PORTUGAL
3 Sept
LHR08:00London Heathrow
16h 25m
1 stop
POA20:25Porto Alegre Salgado Filho
26 Sept
POA01:40Porto Alegre Salgado Filho
28h 40m
1 stop
LHR10:20London Heathrow
£849
TAP AIR PORTUGAL
14 Nov
LHR06:00London Heathrow
16h 40m
1 stop
POA19:40Porto Alegre Salgado Filho
5 Dec
POA21:10Porto Alegre Salgado Filho
22h 30m
1 stop
LHR22:40London Heathrow
£896
TAP AIR PORTUGAL
12 Nov
LGW10:40London Gatwick
47h 35m
2 stops
POA07:15Porto Alegre Salgado Filho
28 Nov
POA21:10Porto Alegre Salgado Filho
33h 40m
1 stop
LGW09:50London Gatwick
£1,008

KLM flights from United Kingdom to Porto Alegre

Our best KLM deals on United Kingdom to Porto Alegre flight tickets
KLM
3 Sept
LCY08:25London City
19h 15m
2 stops
POA23:40Porto Alegre Salgado Filho
27 Sept
POA14:05Porto Alegre Salgado Filho
25h 40m
2 stops
LCY19:45London City
£869
KLM
4 Sept
LHR06:30London Heathrow
20h 55m
2 stops
POA23:25Porto Alegre Salgado Filho
19 Sept
POA18:40Porto Alegre Salgado Filho
19h 10m
2 stops
LHR17:50London Heathrow
£898
KLM
4 Sept
LCY08:25London City
19h 00m
2 stops
POA23:25Porto Alegre Salgado Filho
19 Sept
POA18:40Porto Alegre Salgado Filho
19h 50m
2 stops
LCY18:30London City
£969

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Porto Alegre 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 27 July 2026.
Use the filters below to find and compare flights from the United Kingdom to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 12/11

21:40-21:50

2 stops27h 10m

Porto Alegre Salgado Filho

Sat 28/11

16:55-14:05

1 stop18h 10m

£813

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 29/9

22:05-22:45

2 stops28h 40m

Porto Alegre Salgado Filho

Tue 27/10

17:10-14:05

1 stop17h 55m

£814

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 12/11

21:40-21:50

2 stops27h 10m

Porto Alegre Salgado Filho

Sat 28/11

15:45-14:05

1 stop19h 20m

£816

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 12/11

20:15-17:15

1 stop24h 00m

Porto Alegre Salgado Filho

Sat 28/11

19:50-14:05

1 stop15h 15m

£824
Fastest return journey

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 12/11

20:15-08:30

1 stop15h 15m

Porto Alegre Salgado Filho

Sat 28/11

19:50-14:05

1 stop15h 15m

£839

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Thu 3/9

08:25-23:40

2 stops19h 15m

Porto Alegre Salgado Filho

Sun 27/9

14:05-19:45

2 stops25h 40m

£869

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Wed 25/11

06:30-21:50

2 stops42h 20m

Porto Alegre Salgado Filho

Sun 29/11

19:50-09:10

2 stops58h 20m

£932

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Wed 25/11

10:05-21:50

2 stops38h 45m

Porto Alegre Salgado Filho

Sun 29/11

19:50-09:10

2 stops34h 20m

£932

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Fri 4/9

08:25-23:25

2 stops19h 00m

Porto Alegre Salgado Filho

Sat 19/9

18:40-18:30

2 stops19h 50m

£969

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Thu 12/11

10:40-07:15

2 stops47h 35m

Porto Alegre Salgado Filho

Sat 28/11

21:10-09:50

1 stop33h 40m

£1,008

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 Porto Alegre from

How to get the cheapest flight ticket from United Kingdom to Porto Alegre

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 Porto Alegre?

In general, April is the cheapest month to fly from United Kingdom to Porto Alegre. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £776. If you aren’t able to travel during the month of April, then book flights to Porto Alegre from United Kingdom during May instead. Flights to Porto Alegre in May, while not as cheap as those in April, still average around £835.

How far in advance should I book a flight to Porto Alegre?

You are more likely to see cheaper flights to Porto Alegre from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around £1,042 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto Alegre from United Kingdom for as low as £813 on momondo.

Can stopping save me money on United Kingdom to Porto Alegre flights?

You could potentially save up to 18% on your flight if you consider stops on a United Kingdom to Porto Alegre flight.

Cheap United Kingdom to Porto Alegre flight deals and tips

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

Fastest flight time

16h 40m

Direct flights

None
The fastest flight from United Kingdom to Porto Alegre takes 16h 40m
There are no direct flights from United Kingdom to Porto Alegre. There are no popular flight routes from United Kingdom to Porto Alegre.
Search flight deals

Frequently asked questions about flying from the United Kingdom to Porto Alegre

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

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

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

  • How old do you have to be to fly from United Kingdom to Porto Alegre Salgado Filho 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 United Kingdom to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The necessary travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United Kingdom to Porto Alegre

Compare and see reviews for airlines that fly from United Kingdom to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £720Free CancellationRating
6.8
8,159 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom £751Free CancellationRating
7.2
2,347 reviews
Search TAP AIR PORTUGAL flights
LATAM AirlinesPriceFrom £757Free CancellationRating
7.4
1,966 reviews
Search LATAM Airlines flights
Virgin AtlanticPriceFrom £1,154Free CancellationRating
7.5
695 reviews
Search Virgin Atlantic flights

Why use momondo?

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

It is quick and easy to find United Kingdom to Porto Alegre flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto Alegre that suits you.

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

Yes. All flights to Porto Alegre from United Kingdom on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United Kingdom to Porto Alegre?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Porto Alegre.

I’m not ready to book a flight from United Kingdom to Porto Alegre right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto Alegre, momondo offers a useful price alert feature which will track prices for flights to Porto Alegre from United Kingdom and alert you when they change.

An easier way to manage your Porto Alegre trip

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Fly your favourite airline to Porto Alegre

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
LATAM Airlines
TAP AIR PORTUGAL
Virgin Atlantic
Lufthansa