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Cheap flights from the United Kingdom to Porto Alegre from £333

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 11/4. 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 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.
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
TAP AIR PORTUGAL Logo
21:10 - 17:30
POA
-
LHR
17h 20m
1 stop
£727TAP AIR PORTUGAL
Sat, 7 Mar - Sat, 14 Mar
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
TAP AIR PORTUGAL Logo
21:10 - 17:30
POA
-
LHR
17h 20m
1 stop
£728TAP AIR PORTUGAL
Sat, 7 Mar - Sat, 14 Mar
TAP AIR PORTUGAL Logo
06:00 - 19:40
LHR
-
POA
16h 40m
1 stop
TAP AIR PORTUGAL Logo
21:10 - 18:55
POA
-
LHR
18h 45m
1 stop
£729TAP AIR PORTUGAL
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
06:00 - 23:55
LHR
-
POA
20h 55m
2 stops
Multiple Airlines Logo
08:25 - 15:35
POA
-
LHR
27h 10m
2 stops
£771Multiple Airlines
Tue, 17 Mar - Sun, 29 Mar
KLM Logo
08:40 - 00:20
LHR
-
POA
19h 40m
2 stops
KLM Logo
18:25 - 16:15
POA
-
LHR
17h 50m
2 stops
£826KLM
Mon, 13 Apr - Tue, 12 May
LATAM Airlines Logo
20:15 - 11:35
LHR
-
POA
18h 20m
1 stop
LATAM Airlines Logo
12:30 - 18:25
POA
-
LHR
25h 55m
2 stops
£873LATAM Airlines
Tue, 17 Mar - Sun, 29 Mar
KLM Logo
07:45 - 00:45
LCY
-
POA
20h 00m
2 stops
KLM Logo
18:25 - 16:40
POA
-
LCY
18h 15m
2 stops
£903KLM
Mon, 2 Mar - Tue, 2 Jun
Lufthansa Logo
09:50 - 11:35
LCY
-
POA
28h 45m
2 stops
Lufthansa Logo
11:00 - 17:55
POA
-
LCY
26h 55m
2 stops
£1,045Lufthansa
Tue, 17 Mar - Sun, 29 Mar
SWISS Logo
18:00 - 09:15
LCY
-
POA
19h 15m
2 stops
SWISS Logo
14:20 - 18:40
POA
-
LCY
24h 20m
2 stops
£1,068SWISS
Mon, 22 Jun - Mon, 29 Jun
Lufthansa Logo
09:15 - 11:00
LCY
-
POA
29h 45m
2 stops
Lufthansa Logo
11:00 - 17:55
POA
-
LCY
26h 55m
2 stops
£1,085Lufthansa
Mon, 22 Jun - Tue, 30 Jun

ITA Airways flights from United Kingdom to Porto Alegre

Our best ITA Airways deals on United Kingdom to Porto Alegre flight tickets
ITA Airways
5 Mar
LCY16:45London City
33h 05m
2 stops
POA22:50Porto Alegre Salgado Filho
9 Mar
POA11:15Porto Alegre Salgado Filho
20h 40m
2 stops
LCY10:55London City
£1,309
ITA Airways
5 Mar
LCY16:45London City
42h 55m
2 stops
POA08:40Porto Alegre Salgado Filho
9 Mar
POA11:15Porto Alegre Salgado Filho
25h 55m
2 stops
LCY16:10London City
£1,347

LATAM Airlines flights from United Kingdom to Porto Alegre

Our best LATAM Airlines deals on United Kingdom to Porto Alegre flight tickets
LATAM Airlines
17 Mar
LHR20:15London Heathrow
18h 20m
1 stop
POA11:35Porto Alegre Salgado Filho
29 Mar
POA12:30Porto Alegre Salgado Filho
25h 55m
2 stops
LHR18:25London Heathrow
£873
LATAM Airlines
2 Mar
LHR06:55London Heathrow
20h 45m
2 stops
POA00:40Porto Alegre Salgado Filho
19 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
£897
LATAM Airlines
22 Jun
LHR21:20London Heathrow
23h 40m
1 stop
POA17:00Porto Alegre Salgado Filho
30 Jun
POA12:10Porto Alegre Salgado Filho
22h 55m
1 stop
LHR15:05London Heathrow
£907

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 19 February 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

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 7/3

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 14/3

21:10-17:30

1 stop17h 20m

£727

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 7/3

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 14/3

21:10-17:30

1 stop17h 20m

£728

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 7/3

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 14/3

21:10-18:55

1 stop18h 45m

£729

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 17/3

06:00-23:55

2 stops20h 55m

Porto Alegre Salgado Filho

Sun 29/3

08:25-15:35

2 stops27h 10m

£771

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 13/4

08:40-00:20

2 stops19h 40m

Porto Alegre Salgado Filho

Tue 12/5

18:25-16:15

2 stops17h 50m

£826

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 17/3

20:15-11:35

1 stop18h 20m

Porto Alegre Salgado Filho

Sun 29/3

12:30-18:25

2 stops25h 55m

£873

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Mon 2/3

07:45-00:45

2 stops20h 00m

Porto Alegre Salgado Filho

Tue 2/6

18:25-16:40

2 stops18h 15m

£903

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Tue 17/3

09:50-11:35

2 stops28h 45m

Porto Alegre Salgado Filho

Sun 29/3

11:00-17:55

2 stops26h 55m

£1,045

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Mon 22/6

18:00-09:15

2 stops19h 15m

Porto Alegre Salgado Filho

Mon 29/6

14:20-18:40

2 stops24h 20m

£1,068

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Mon 22/6

09:15-11:00

2 stops29h 45m

Porto Alegre Salgado Filho

Tue 30/6

11:00-17:55

2 stops26h 55m

£1,085

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, May 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 £698. If you aren’t able to travel during the month of May, then book flights to Porto Alegre from United Kingdom during February instead. Flights to Porto Alegre in February, while not as cheap as those in May, still average around £773.

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 £940 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 £824 on momondo.

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

  • 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
SWISSPriceFrom £490Free CancellationRating
7.5
1,878 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom £689Free CancellationRating
7.1
2,144 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom £709Free CancellationRating
6.8
7,790 reviews
Search Lufthansa flights
LATAM AirlinesPriceFrom £722Free CancellationRating
7.5
1,921 reviews
Search LATAM Airlines flights
Virgin AtlanticPriceFrom £1,112Free CancellationRating
7.5
678 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.

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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
Lufthansa
Virgin Atlantic
SWISS