POA - LHR

£375 Find Cheap Flights from Porto Alegre to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto Alegre to Heathrow departing on 22/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto Alegre to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto Alegre to London, as well as popular online travel agencies
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Cheap Flights from Porto Alegre to Heathrow (POA-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Porto Alegre to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Porto Alegre to Heathrow

Tue, 4 Nov - Wed, 26 Nov
GOL Logo
13:35 - 16:35POA-LHR
24h 00m2 stops
GOL Logo
09:00 - 08:10LHR-POA
26h 10m2 stops
£548GOL
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Tue, 4 Nov - Wed, 26 Nov
GOL Logo
13:35 - 16:35POA-LHR
24h 00m2 stops
GOL Logo
09:00 - 08:10LHR-POA
26h 10m2 stops
£550GOL
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Wed, 22 Oct - Mon, 3 Nov
Logo
14:35 - 13:00POA-LHR
18h 25m2 stops
Logo
07:40 - 00:30LHR-POA
19h 50m2 stops
£659
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Wed, 22 Oct - Mon, 3 Nov
Logo
14:35 - 12:40POA-LHR
18h 05m2 stops
Logo
07:40 - 00:30LHR-POA
19h 50m2 stops
£666
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Tue, 21 Oct - Mon, 3 Nov
TAP AIR PORTUGAL Logo
00:15 - 22:55POA-LHR
18h 40m1 stop
TAP AIR PORTUGAL Logo
18:30 - 19:40LHR-POA
28h 10m1 stop
£734TAP AIR PORTUGAL
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Sat, 1 Nov - Fri, 7 Nov
TAP AIR PORTUGAL Logo
21:10 - 22:40POA-LHR
22h 30m1 stop
TAP AIR PORTUGAL Logo
19:55 - 19:40LHR-POA
26h 45m1 stop
£737TAP AIR PORTUGAL
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Tue, 28 Oct - Sat, 8 Nov
SWISS Logo
14:35 - 13:00POA-LHR
19h 25m2 stops
SWISS Logo
20:05 - 11:40LHR-POA
42h 35m2 stops
£764SWISS
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Tue, 28 Oct - Sat, 8 Nov
SWISS Logo
14:35 - 16:40POA-LHR
23h 05m3 stops
SWISS Logo
20:05 - 11:40LHR-POA
42h 35m2 stops
£788SWISS
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Wed, 22 Oct - Mon, 3 Nov
LATAM Airlines Logo
17:45 - 15:05POA-LHR
17h 20m1 stop
LATAM Airlines Logo
20:15 - 09:15LHR-POA
16h 00m1 stop
£792LATAM Airlines
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Wed, 22 Oct - Mon, 3 Nov
LATAM Airlines Logo
17:45 - 15:05POA-LHR
17h 20m1 stop
LATAM Airlines Logo
20:15 - 11:40LHR-POA
18h 25m1 stop
£794LATAM Airlines
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KAYAK's insights & trends for Porto Alegre to Heathrow flights

Get data-powered insights and trends into flights from Porto Alegre to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Porto Alegre to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto Alegre to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Porto Alegre to London Heathrow Airport is February, where tickets cost £623 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is £933 and £922 respectively.

How far in advance should I book a flight from Porto Alegre to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Porto Alegre to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Porto Alegre to London Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

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Good to know - Cheap tickets from Porto Alegre to London Heathrow Airport

Low seasonSeptember
High seasonFebruary
Cheapest flight£375
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Porto Alegre to London Heathrow Airport

When to book flights from Porto Alegre to Heathrow

Are your dates flexible? Find out the best times to travel from Porto Alegre to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Porto Alegre to London Heathrow Airport flights

  • What is the cheapest flight from Porto Alegre to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Porto Alegre to London Heathrow Airport was £510 for a one-way ticket and £745 for a return.

  • Which aircraft models fly most regularly from Porto Alegre to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Porto Alegre to London Heathrow Airport?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Porto Alegre and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Porto Alegre to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto Alegre to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto Alegre to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Porto Alegre is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto Alegre to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Porto Alegre with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto Alegre to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Porto Alegre up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Porto Alegre to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Porto Alegre to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto Alegre to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
LATAM AirlinesOverall score based on 1785 reviews
6.7Food
7.6Boarding
7.4Comfort
7.0Entertainment
8.1Crew
Airline reviews

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

10.0 ExcellentRita, Apr 2025LIM - JFK
Read more LATAM Airlines reviews

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

Change of gate in Santiago devolved into half plus hour delay and a really tight connection in Lima

Although the flight is goof and the crew is good, the way the airline charges you for every service is ridiculous.

I liked everything, this was classed as premium economy but it was much better than Lufthansas business class. Lovely staff, comfortable plane and an excellent seat arrangement. A very pleasant surprise.

Everything was good except the check in. Could not do it online neither on the machines in the airport. Needed special assistance from the airline desk clerk

We boarded so late it caused us to miss time at Foz. No real information was provided to the passengers waiting.

Basic experience, we were delayed causing less time to enjoy our destination and on the way back, we boarded when the flight should have been taking off.

reliable, relatively relaxed, helpful and kind staff and clean airplanes. No need for more.

Very poor ! Latam is really excellent in mistreating its premium passengers and their family. They should go out of business for good.

Please guy check the food I almost end up to the hospital

Everything you need to know for your flight from Porto Alegre to Heathrow

Information on your arrival and departure airports

Porto Alegre (POA)
Heathrow (LHR)

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