Find flights
When to book
Airlines
FAQs

Cheap flights from Porto Alegre to London from £301

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
POA — LON
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Porto Alegre Salgado Filho to London are usually found in February or March, booked 42 days in advance, depart on a Friday or Saturday and return on a Thursday

Cheap flight deals from Porto Alegre to London

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 November 2025.

Round-trip from

£651

One-way from

£301

Popular in

July

Cheapest in

February

Average price

£699
LATAM Airlines
  • LATAM Airlines
  • 13/3-16/4
  • 4 total stops
  • 52h 50m total
  • Porto Alegre to London
Search Deals
LATAM Airlines
  • LATAM Airlines
  • 1/12
  • 1 total stop
  • 14h 55m total
  • Porto Alegre to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Porto Alegre to London

Enter your travel dates to find the best prices.

Cheapest flights from Porto Alegre to London
Explore the most affordable flight options available from Porto Alegre to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 November 2025.

Tue 18/1121:10POA - LHR
1 stop22h 30mTAP AIR PORTUGAL
Tue 25/1106:00LHR - POA
1 stop16h 40mTAP AIR PORTUGAL
Deal found 17/11£671
Mon 24/1112:20POA - LHR
1 stop22h 45mLATAM Airlines
Wed 31/1218:45LHR - POA
2 stops21h 30mLATAM Airlines
Deal found 17/11£726
Wed 26/1113:40POA - LHR
2 stops21h 10mKLM
Tue 9/1206:30LHR - POA
2 stops21h 15mKLM
Deal found 16/11£787
Mon 24/1110:00POA - LHR
1 stop25h 05mLATAM Airlines
Tue 30/1215:45LHR - POA
2 stops28h 35mLATAM Airlines
Deal found 17/11£791
Tue 25/1114:05POA - LHR
2 stops23h 30mLATAM Airlines
Thu 25/1217:25LHR - POA
2 stops26h 40mLATAM Airlines
Deal found 17/11£801
Tue 18/1121:10POA - LGW
1 stop33h 40mTAP AIR PORTUGAL
Tue 25/1121:20LGW - POA
2 stops49h 00mTAP AIR PORTUGAL
Deal found 17/11£802
Wed 26/1113:40POA - LCY
2 stops23h 55mKLM
Tue 9/1207:45LCY - POA
2 stops20h 00mKLM
Deal found 16/11£805
Mon 24/1110:00POA - LHR
1 stop25h 05mLATAM Airlines
Wed 24/1220:15LHR - POA
1 stop18h 25mLATAM Airlines
Deal found 17/11£810
Tue 25/1114:05POA - LHR
2 stops23h 30mLATAM Airlines
Tue 30/1220:15LHR - POA
1 stop20h 50mLATAM Airlines
Deal found 17/11£817
Tue 25/1114:05POA - LHR
2 stops23h 30mLATAM Airlines
Mon 29/1220:15LHR - POA
2 stops19h 35mLATAM Airlines
Deal found 17/11£820
Tue 25/1114:00POA - LHR
1 stop21h 05mLATAM Airlines
Wed 31/1220:15LHR - POA
1 stop20h 50mLATAM Airlines
Deal found 17/11£821
Mon 24/1110:00POA - LHR
1 stop25h 05mLATAM Airlines
Fri 26/1215:45LHR - POA
2 stops28h 25mLATAM Airlines
Deal found 17/11£825

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 19 November 2025.
Use the filters below to find and compare flights from Porto Alegre to London that are best for you.

Fly from

Porto Alegre

Fly to

London

Route

Depart

Return

Price

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Fri 27/2

20:10-18:15

2 stops19h 05m

London Heathrow

Fri 6/3

20:15-22:50

2 stops29h 35m

£775

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 12/3

00:45-22:40

1 stop18h 55m

London Heathrow

Thu 16/4

08:00-20:25

1 stop16h 25m

£799

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 10/3

13:40-16:35

2 stops23h 55m

London City

Tue 31/3

08:40-00:40

2 stops20h 00m

£805

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Mon 16/3

13:40-16:35

2 stops23h 55m

London City

Tue 24/3

07:45-00:45

2 stops20h 00m

£805

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Mon 23/2

13:40-16:10

2 stops23h 30m

London City

Sat 7/3

11:35-00:50

2 stops40h 15m

£808

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Mon 16/3

15:25-16:10

2 stops21h 45m

London City

Sun 22/3

16:45-20:10

2 stops30h 25m

£809

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Tue 17/3

08:25-10:55

2 stops23h 30m

London City

Mon 23/3

16:45-13:10

2 stops23h 25m

£809

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Wed 18/3

08:25-10:55

2 stops23h 30m

London City

Tue 24/3

08:25-13:10

2 stops31h 45m

£809

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 5/2

17:55-14:05

1 stop17h 10m

London Heathrow

Thu 19/2

20:15-14:10

2 stops20h 55m

£820

Porto AlegreLondon

POA - LCY

POALCY

Porto Alegre Salgado Filho

Thu 5/2

05:30-10:55

2 stops50h 25m

London City

Thu 19/2

08:25-09:55

2 stops52h 30m

£838

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Porto Alegre to London

Have a flexible travel schedule? Discover the best time to fly to London from Porto Alegre with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto Alegre to London

How far ahead should I book a flight from Porto Alegre to London?

Use this chart to determine the optimal time to book a return flight from Porto Alegre to London. Price data was last updated on 14 November 2025.

The best time to book flights from Porto Alegre to London is 42 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Porto Alegre to London?

Currently, January is the cheapest month in which you can book a flight from Porto Alegre to London (average of £245). Flying from Porto Alegre to London in September is currently the most expensive (average of £864). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from POA to LON?

Find hourly flight availability from Porto Alegre to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 November 2025.

It’s typically best to fly out from Porto Alegre to London in the morning. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

What’s the top stopover airport for flights from Porto Alegre to London?

Share of one-stop return flights from Porto Alegre to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Sao Paulo (GRU) – chosen by Cheapflights users on 73% of one-stop itineraries from Porto Alegre to London on Cheapflights.

What’s the cheapest stopover airport for flights from Porto Alegre to London?

Average return fare for one-stop flights from Porto Alegre to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £790.

What’s the fastest stopover option from Porto Alegre to London?

Shortest average travel time for one-stop one-way flights from Porto Alegre to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 15h 03m.

Which airport typically offers the quickest stopover for flights from Porto Alegre to London?

Average stopover duration for one-stop one-way flights from Porto Alegre to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 2h 13m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 19 November 2025.
See what other customers who have flown with LATAM Airlines, GOL, andTAP AIR PORTUGAL from Porto Alegre to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,877 reviews
Check prices

Boarding

7.6

Comfort

7.3

Crew

8.0

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
LATAM Airlines
7.5
Good
1,877 reviews
LATAM Airlines
7.5
Good
1,877 reviews
Check prices

Boarding

7.6

Comfort

7.3

Crew

8.0

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
GOL
7.3
Good
1,129 reviews
LATAM Airlines
7.5
Good
1,877 reviews
Check prices

Boarding

7.6

Comfort

7.3

Crew

8.0

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
TAP AIR PORTUGAL
7.1
Good
2,066 reviews
LATAM Airlines
7.5
Good
1,877 reviews
Check prices

Boarding

7.6

Comfort

7.3

Crew

8.0

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto Alegre to London?

    Located just 4.0 mi from the city center, Porto Alegre Salgado Filho is the airport most travelers will use when flying to London from Porto Alegre. Booking flights from Salgado Filho (POA) to London should be relatively easy as there are 0 daily outbound flights to London from 1 airline.

  • How long is the flight from Porto Alegre to London?

    Departing from Porto Alegre to London will take you 18h 55m. There are 6410 mi between Porto Alegre and London. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Porto Alegre to London round-trip?

    Cheapflights users have booked flights from Porto Alegre to London round-trip from £778. LATAM Airlines is currently priced 1% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Porto Alegre to London one-way?

    To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at £301. Air Canada flights start at £419 while deals on ITA Airways start at £444 one-way.

  • What are the most popular routes from Porto Alegre to London?

    The most popular route from Porto Alegre to London is Porto Alegre Salgado Filho - London Heathrow. You may also consider Porto Alegre Salgado Filho - London City or Porto Alegre Salgado Filho - London Gatwick.

  • Can I find deals for flights from Porto Alegre to London that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto Alegre to London.

  • Can I find deals for business class flights from Porto Alegre to London?

    Yes. Cheapflights offers flight deals from Porto Alegre to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto Alegre to London?

    Currently, January is the cheapest month in which you can book a flight from Porto Alegre to London (average of £245). Flying from Porto Alegre to London in September is currently the most expensive (average of £864). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Crawley
Brentford
Romford
Chichester
Ipswich
Bedford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto Alegre to London

See prices for flight routes from nearby airports that may be better suited for you.
Porto Alegre to Heathrow flights
Porto Alegre to Gatwick flights
Porto Alegre to Manchester flights
Porto Alegre to Edinburgh flights

Top airline flying from Porto Alegre to London

Discover the top airline that operate flights from Porto Alegre to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£778Average£839FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Porto Alegre to London?

When you search for this flight from Porto Alegre to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Porto Alegre to London?

Cheapflights simply makes it quick and affordable to book flights from Porto Alegre to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Porto Alegre to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Porto Alegre to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Porto Alegre to London become cheaper?

Yes! Start tracking prices for Porto Alegre to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.