LON - POA

£405 Find Cheap Flights from London to Porto Alegre

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Porto Alegre departing on 13/11. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Porto Alegre.
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Cheap Flights from London to Porto Alegre (LON-POA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Porto Alegre 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 London to Porto Alegre

Thu, 13 Nov - Sat, 29 Nov
TAP AIR PORTUGAL Logo
06:00 - 19:20LHR-POA
16h 20m1 stop
TAP AIR PORTUGAL Logo
21:10 - 18:55POA-LHR
18h 45m1 stop
£706TAP AIR PORTUGAL
Find Deal
Fri, 14 Nov - Sun, 30 Nov
 Logo
19:25 - 23:25LHR-POA
31h 00m2 stops
 Logo
10:25 - 13:45POA-LHR
24h 20m2 stops
Sat, 31 Jan - Sat, 14 Feb
LATAM Airlines Logo
09:10 - 00:40LHR-POA
18h 30m2 stops
LATAM Airlines Logo
19:30 - 14:05POA-LHR
39h 35m2 stops
£801LATAM Airlines
Find Deal
Thu, 13 Nov - Mon, 1 Dec
LATAM Airlines Logo
20:15 - 17:05LHR-POA
23h 50m1 stop
LATAM Airlines Logo
06:40 - 14:05POA-LHR
28h 25m1 stop
£843LATAM Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
KLM Logo
06:30 - 23:30LHR-POA
20h 00m2 stops
KLM Logo
17:45 - 13:50POA-LHR
17h 05m2 stops
£887KLM
Find Deal
Fri, 14 Nov - Mon, 1 Dec
Lufthansa Logo
07:40 - 00:25LHR-POA
19h 45m2 stops
Lufthansa Logo
12:30 - 08:45POA-LHR
17h 15m2 stops
£904Lufthansa
Find Deal
Sat, 15 Nov - Sat, 29 Nov
Air Europa Logo
17:25 - 10:35LGW-POA
20h 10m2 stops
Air Europa Logo
11:00 - 09:00POA-LGW
19h 00m2 stops
£932Air Europa
Find Deal
Thu, 13 Nov - Sat, 29 Nov
Air Europa Logo
17:25 - 16:35LGW-POA
26h 10m2 stops
Air Europa Logo
11:00 - 09:00POA-LGW
19h 00m2 stops
£940Air Europa
Find Deal
Thu, 25 Sep - Sun, 5 Oct
KLM Logo
08:40 - 00:50LHR-POA
20h 10m2 stops
KLM Logo
17:05 - 17:35POA-LHR
20h 30m2 stops
£960KLM
Find Deal
Fri, 14 Nov - Sat, 29 Nov
Lufthansa Logo
07:40 - 00:25LHR-POA
19h 45m2 stops
Lufthansa Logo
14:55 - 15:50POA-LHR
21h 55m2 stops
£1,012Lufthansa
Find Deal

Everything you should know

Top airlines
TAP AIR PORTUGAL
Cheapest • from £706 (return)
KLM
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£706
Overall average: £1,121
TAP AIR PORTUGAL
Thu 13/11Sat 29/11
LHR - POA • 1 stop
Cheapest one-way flight
£405
Multi-carrier
Thu 13/11
LGW - POA • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Porto Alegre!
Booking Insights

KAYAK's insights & trends for London to Porto Alegre flights

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

How much is a return flight from London to Porto Alegre?

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Porto Alegre, 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 London to Porto Alegre is October, where tickets cost £723 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £1,297 and £1,137 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Porto Alegre, 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 London to Porto Alegre, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know - Cheap tickets from London to Porto Alegre

Low seasonJune
Cheapest flight£405
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (24% more expensive on average)
Flight from London Gatwick Airport to Porto Alegre

When to book flights from London to Porto Alegre

Are your dates flexible? Find out the best times to travel from London to Porto Alegre 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 flights from London to Porto Alegre

  • What special meals are available on SWISS Air?

    SWISS Air has a fantastic alternative meal menu that caters for every religious, cultural or dietary type. If you're health conscious, you can book low salt, low fat, gluten intolerant or lactose intolerant. If you would like a Kosher, Jain, Hindu or Halal meal, or you prefer your food plant-based, SWISS Air can prepare all for you with 24 hours notice.

  • Does LATAM Airlines allow service animals in the cabin?

    Your service animal will be more than welcome to join you in the cabin on a flight with LATAM Airlines. As long as the animal is certified, has the correct documentation and is kept on a leash, it can fly seated at your feet. Ensure you book in the animal when you make your own ticket booking.

  • Can children fly alone from London to Salgado Filho Porto Alegre International Airport (POA) on Lufthansa?

    It's daunting for young children to take international flights alone so book them on an airline that provides an Unaccompanied Minors service. Lufthansa allows minors between the ages of 5 and 11 years to fly alone if they are booked in with the service. The airline takes responsibility of the child from Departures in London, during the flight and ensure they are handed to the guardian in Arrivals or placed on the correct connecting flight.

  • Will I be able to get medical assistance when I arrive at Salgado Filho Porto Alegre International Airport (POA)?

    If you are feeling unwell when you arrive in Brazil, you will be able to find a 24-hour medical clinic at the airport, It is based on the ground floor of passenger Terminal 1 and should be able to handle most minor issues. For larger issues, they can assist with getting you an ambulance to the nearest hospital.

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

    In the last 3 days, the lowest price for a flight from London to Porto Alegre was £551 for a one-way ticket and £959 for a return.

  • Which airports will I be using when flying from London to Porto Alegre?

    On your way to Porto Alegre, you’ll fly out from one of these London airports: London Gatwick or London Heathrow. You’ll be landing at Porto Alegre Salgado Filho.

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

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

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

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

  • Which is the best airline for flights from London to Porto Alegre, KLM or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from London to Porto Alegre are KLM and LATAM Airlines. With an average price for the route of £763 and an overall rating of 7.8, KLM is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of £1,023 and an overall rating of 7.5.

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

    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 London to Porto Alegre.

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

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

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

    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 Porto Alegre with an airline and back to London with another airline.

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

    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 Porto Alegre from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Porto Alegre

  • When flying from London to Salgado Filho Porto Alegre International Airport (POA), you can leave from London Heathrow Airport (LHR). To get there in the shortest time, opt for the tube on the Piccadilly Line. You will find it stops right at the airport in terminals 2, 3, 4 and 5.
  • When boarding the plane from London Gatwick Airport (LGW), you will find a convenient security lane for passengers needing special assistance, and a family lane to help departing families get onto the plane and be settled quicker. Simply look for the signs.
  • If you need a little peace before take-off, book into one of the London Heathrow Airport (LHR) lounges. Either Club Aspire or the Premium Plaza lounges have relaxing environments, great food and drink choices, shower facilities, resting areas, unlimited Wi-Fi and more.
  • Special assistance can be arranged with British Airways. Pre-book online 48 hours ahead of departure and be assisted to and from the aircraft, finding your seat, the familiarisation of your surroundings, assistance to the toilets and choosing meals. The crew members are available to ensure you're looked after.
  • To quickly reach central Porto Alegre when you arrive, take one of the local buses that run between the airport and the city. These are numbers B09 and B091. They are highly cost-effective. There are also taxis available all day and night.

Reviews of the top 5 airlines flying from London to Porto Alegre

 
See real verified KAYAK customer reviews for airlines flying from London to Porto Alegre. 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 London to Porto Alegre? 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.
7.8
KLMOverall score based on 1385 reviews
8.4Crew
7.7Comfort
7.2Entertainment
7.8Boarding
7.3Food
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Boarding was confusing with a delayed flight because there was no English translation

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Lost ,y connection due to a mechanical delay, huge line to get new connection and vouchers

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

entertainment was not good; the shoulder strap on Business class seat did not sit well across the body (more like across the neck); the food was not hot and the special meal promoted by insert in the menu was not available to us

The boarding and new bag drop-off process was confusing and causing massive delays.

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

I will avoid TAP if I can, the ground experience was very poor with bad behaviour from the ground crew and it was only a bit better on the aircraft.

A good, comfortable flight with friendly crew and good entertainment options.

Boarding experience was awful. TAP claims I did not have check in luggage with tickets. I went 3-4 check in agents until I finally found a helpful kind agent who checked in my luggage with no fees. On top of that our flight was over 2 hours delayed with barely an apology or explanation.

boarding is so disorganized, i was literally appalled at the boarding experience

Flight was delayed on 6/20 to miss international connection. Next flight out was 24 hours later. Not acceptable.

Terrible! I had to cancel our flights due to my wife Carmen requiring an unexpected second cancer surgery. I first contacted orbitz about obtaining a credit due to medical interruption and orbitz directed me to TAP. I contacted TAP and the representative directed me back to orbitz and refused to even explain what TAP’s medical interruption policy was or how it worked—I wanted that information for a second call to orbitz. Terrible service at a particularly difficult time.

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

First, communication was terrible. The gate on our ticket was not what was reflected on the airport screens and TAP personnel were not present at either gate to answer questions. The flight was delayed and there was no announcement. Also, there was an equipment swap to a smaller airframe which affected our level of comfort. The root of all these issues was as a lack of communication. With air travel in foreign countries already being a stressful affair, lack of communication needlessly raises the level of difficulty.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

We were upgraded to economy plus and everything was awesome!

I fly to Germany every year and prefer the most direct flight routes. Lufthansa offers this route, allowing me to fly from my home airport directly to Germany. The food and service were excellent. The staff was most accommodating, very professional, and friendly. The only issue I did not care for was the seating arrangement. I fly business and did not appreciate the configuration of the business class. Understandably, you will always have someone seated next to you, but then install a separation screen to allow for a little more privacy. United and British Airways are miles ahead in creating a more personal space. Lufthansa should do better.

The plane was late (as was my flight out from Birmingham the day before)

This is one of the best flights i had. Good boarding, good seats , good food, and nuce stuff and clean toilets I took the Tourist upgrade and indianischer food , the best.

The flight was delayed by an hour. Made the connection uncomfortably tight.

Complete mess. Our reservation was mistakenly cancelled. After almost missing the connection and walking all over the Munich airport, the Service desk got involved and we were run to our flight. Not all 4 of us in Business and not seated together as originally booked. This was the worst treatment I have ever had. And I travel a lot. 1K million miler.

Very old plan, bad cabin layout and seats, entertainment system would get 95% through a film and then crash and reboot. I wont be using Lufthansa after I return back home, would rather pau more for a better flight arramgement.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

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

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