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Cheap flights from London to Porto Alegre from £820

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Porto Alegre departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Porto Alegre

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:05 - 20:00
LGW
-
POA
26h 55m2 stops
Multiple Airlines Logo
09:05 - 21:05
POA
-
LGW
33h 00m2 stops
£820Multiple Airlines
Thu, 15 Jan - Sat, 28 Mar
SWISS Logo
20:05 - 11:35
LHR
-
POA
42h 30m2 stops
SWISS Logo
14:50 - 16:40
POA
-
LHR
22h 50m3 stops
£821SWISS
Tue, 3 Mar - Tue, 24 Mar
Multiple Airlines Logo
06:55 - 09:45
LGW
-
POA
30h 50m3 stops
Multiple Airlines Logo
14:10 - 14:00
POA
-
LGW
19h 50m2 stops
£822Multiple Airlines
Mon, 6 Apr - Wed, 22 Apr
LATAM Airlines Logo
18:45 - 17:00
LHR
-
POA
25h 15m2 stops
LATAM Airlines Logo
16:15 - 15:05
POA
-
LHR
18h 50m1 stop
£827LATAM Airlines
Tue, 10 Mar - Tue, 31 Mar
LATAM Airlines Logo
20:15 - 08:45
LHR
-
POA
15h 30m1 stop
LATAM Airlines Logo
17:50 - 15:05
POA
-
LHR
17h 15m1 stop
£833LATAM Airlines
Tue, 10 Mar - Tue, 31 Mar
Lufthansa Logo
06:35 - 23:55
LHR
-
POA
20h 20m2 stops
Lufthansa Logo
14:50 - 12:50
POA
-
LHR
19h 00m2 stops
£834Lufthansa
Mon, 2 Mar - Thu, 19 Mar
TAP AIR PORTUGAL Logo
16:25 - 21:45
LGW
-
POA
33h 20m1 stop
TAP AIR PORTUGAL Logo
00:15 - 09:45
POA
-
LGW
29h 30m1 stop
£835TAP AIR PORTUGAL
Mon, 6 Apr - Tue, 21 Apr
Lufthansa Logo
09:50 - 13:15
LCY
-
POA
30h 25m2 stops
Lufthansa Logo
11:00 - 18:35
POA
-
LCY
27h 35m2 stops
£854Lufthansa
Tue, 3 Mar - Tue, 31 Mar
KLM Logo
07:45 - 00:45
LCY
-
POA
20h 00m2 stops
KLM Logo
18:30 - 17:20
POA
-
LCY
18h 50m2 stops
£996KLM
Tue, 10 Mar - Tue, 7 Apr
KLM Logo
07:45 - 00:45
LCY
-
POA
20h 00m2 stops
KLM Logo
13:40 - 16:35
POA
-
LCY
23h 55m2 stops
£1,013KLM
Mon, 2 Mar - Thu, 19 Mar

Air Europa flights from London to Porto Alegre

Our best Air Europa deals on London to Porto Alegre flight tickets
Air Europa
14 Mar
LGW10:00London Gatwick
32h 25m
2 stops
POA15:25Porto Alegre Salgado Filho
18 Mar
POA10:30Porto Alegre Salgado Filho
26h 55m
2 stops
LGW16:25London Gatwick
£884
Find similar
Air Europa
14 Mar
LGW10:00London Gatwick
32h 55m
2 stops
POA15:55Porto Alegre Salgado Filho
18 Mar
POA09:45Porto Alegre Salgado Filho
20h 15m
2 stops
LGW09:00London Gatwick
£902
Find similar
Air Europa
2 Mar
LGW17:25London Gatwick
26h 05m
2 stops
POA16:30Porto Alegre Salgado Filho
19 Mar
POA05:30Porto Alegre Salgado Filho
24h 30m
2 stops
LGW09:00London Gatwick
£903
Find similar

LATAM Airlines flights from London to Porto Alegre

Our best LATAM Airlines deals on London to Porto Alegre flight tickets
LATAM Airlines
10 Mar
LHR18:45London Heathrow
25h 15m
2 stops
POA17:00Porto Alegre Salgado Filho
31 Mar
POA16:15Porto Alegre Salgado Filho
18h 50m
1 stop
LHR15:05London Heathrow
£827
Find similar
LATAM Airlines
10 Mar
LHR20:15London Heathrow
15h 30m
1 stop
POA08:45Porto Alegre Salgado Filho
31 Mar
POA17:50Porto Alegre Salgado Filho
17h 15m
1 stop
LHR15:05London Heathrow
£833
Find similar
LATAM Airlines
2 Mar
LHR20:15London Heathrow
18h 20m
1 stop
POA11:35Porto Alegre Salgado Filho
19 Mar
POA20:10Porto Alegre Salgado Filho
14h 55m
1 stop
LHR14:05London Heathrow
£839
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 5 December 2025.
Use the filters below to find and compare flights from London to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Thu 15/1

20:05-20:00

2 stops26h 55m

Porto Alegre Salgado Filho

Sat 28/3

09:05-21:05

2 stops33h 00m

£820

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 3/3

20:05-11:35

2 stops42h 30m

Porto Alegre Salgado Filho

Tue 24/3

14:50-16:40

3 stops22h 50m

£821

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Mon 6/4

06:55-09:45

3 stops30h 50m

Porto Alegre Salgado Filho

Wed 22/4

14:10-14:00

2 stops19h 50m

£822

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 10/3

18:45-17:00

2 stops25h 15m

Porto Alegre Salgado Filho

Tue 31/3

16:15-15:05

1 stop18h 50m

£827

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 10/3

20:15-08:45

1 stop15h 30m

Porto Alegre Salgado Filho

Tue 31/3

17:50-15:05

1 stop17h 15m

£833

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 2/3

06:35-23:55

2 stops20h 20m

Porto Alegre Salgado Filho

Thu 19/3

14:50-12:50

2 stops19h 00m

£834

LondonPorto Alegre

LGW - POA

LGWPOA

London Gatwick

Mon 6/4

16:25-21:45

1 stop33h 20m

Porto Alegre Salgado Filho

Tue 21/4

00:15-09:45

1 stop29h 30m

£835

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Tue 3/3

09:50-13:15

2 stops30h 25m

Porto Alegre Salgado Filho

Tue 31/3

11:00-18:35

2 stops27h 35m

£854

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Tue 10/3

07:45-00:45

2 stops20h 00m

Porto Alegre Salgado Filho

Tue 7/4

18:30-17:20

2 stops18h 50m

£996

LondonPorto Alegre

LCY - POA

LCYPOA

London City

Mon 2/3

07:45-00:45

2 stops20h 00m

Porto Alegre Salgado Filho

Thu 19/3

13:40-16:35

2 stops23h 55m

£1,013

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Porto Alegre?

What is the cheapest month to fly to Porto Alegre?

In general, May is the cheapest month to fly from London to Porto Alegre. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £779. If you aren’t able to travel during the month of May, then book flights to Porto Alegre from London during February instead. Flights to Porto Alegre in February, while not as cheap as those in May, still average around £784.

What is the cheapest day to depart on your flight to Porto Alegre?

On average, the least expensive day to fly to Porto Alegre from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as £830. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,004.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the morning. Flights from London to Porto Alegre during this time can be as low as £874. Flights to Porto Alegre are more costly in the evening, with an average ticket price of £939. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Porto Alegre from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto Alegre for around £945 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 London for as low as £719 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a London to Porto Alegre flight.

How have London to Porto Alegre flight prices changed over time?

As of December 2025, prices for London to Porto Alegre flights are approximately 52% more expensive when compared to flights at the same time last year.

When to book flights from London to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from London to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Porto Alegre (LON to POA) flight deals and tips

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

Fastest flight time

16h 40m

Direct flights

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

  • How far is London to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 6424.7 mi away from London. In terms of flight time, this usually takes a little over 15h 30m.

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

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

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

  • How old do you have to be to fly from London 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 London 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.

  • What is the most popular airline from London to Porto Alegre?

Best airlines flying from London to Porto Alegre

Compare and see reviews for airlines that fly from London to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom £636Free CancellationRating
7.1
2,081 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom £649Free CancellationRating
7.4
1,502 reviews
Search Air France flights
LATAM AirlinesPriceFrom £709Free CancellationRating
7.5
1,890 reviews
Search LATAM Airlines flights
Virgin AtlanticPriceFrom £944Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Porto Alegre for you.

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

Yes. momondo allows you to filter the results for London to Porto Alegre flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto Alegre from London.

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

Yes momondo offers price alerts on flights to Porto Alegre from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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TAP AIR PORTUGAL
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Air France