LON - POA

£320 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 27/4. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto Alegre

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Porto Alegre, 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 London to Porto Alegre, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£866
Overall average: £891
LATAM Airlines
Tue 5/5Tue 19/5
LHR - POA • 1 stop
Cheapest one-way flight
£320
Multiple Airlines
Mon 27/4
LGW - POA • 3 stops
Top airlines
Cheapest • from £921 (return)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Porto Alegre. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £1,063 (return)
Shortest trip • 16h 29m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Porto Alegre!
Flight Deals
Booking Insights
Flight Deals

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

Tue, 5 May - Tue, 19 May
LATAM Airlines Logo
21:20 - 09:20
LHR
-
POA
16h 00m
1 stop
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
£866LATAM Airlines
Mon, 4 May - Thu, 21 May
LATAM Airlines Logo
21:20 - 11:15
LHR
-
POA
17h 55m
1 stop
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
£872LATAM Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
06:00 - 00:15
LGW
-
POA
22h 15m
2 stops
Multiple Airlines Logo
05:30 - 09:00
POA
-
LGW
23h 30m
2 stops
£910Multiple Airlines
Mon, 4 May - Thu, 21 May
KLM Logo
08:40 - 23:45
LHR
-
POA
19h 05m
2 stops
KLM Logo
15:45 - 17:35
POA
-
LHR
21h 50m
2 stops
£915KLM
Mon, 4 May - Thu, 21 May
KLM Logo
06:30 - 23:45
LHR
-
POA
21h 15m
2 stops
KLM Logo
16:20 - 16:15
POA
-
LHR
19h 55m
2 stops
£930KLM
Mon, 4 May - Thu, 21 May
TAP AIR PORTUGAL Logo
18:45 - 21:45
LHR
-
POA
31h 00m
1 stop
TAP AIR PORTUGAL Logo
21:55 - 18:50
POA
-
LHR
16h 55m
1 stop
£931TAP AIR PORTUGAL
Sun, 19 Apr - Mon, 4 May
Multiple Airlines Logo
21:15 - 00:15
LGW
-
POA
31h 00m
3 stops
Multiple Airlines Logo
10:05 - 09:00
POA
-
LGW
18h 55m
2 stops
£959Multiple Airlines
Mon, 27 Apr - Mon, 4 May
TAP AIR PORTUGAL Logo
16:25 - 21:45
LGW
-
POA
33h 20m
1 stop
TAP AIR PORTUGAL Logo
08:25 - 09:45
POA
-
LGW
21h 20m
2 stops
£989TAP AIR PORTUGAL
Mon, 27 Apr - Mon, 4 May
Lufthansa Logo
09:15 - 08:50
LCY
-
POA
27h 35m
2 stops
Lufthansa Logo
14:20 - 17:55
POA
-
LCY
23h 35m
2 stops
£1,206Lufthansa
Sun, 19 Apr - Mon, 4 May
Lufthansa Logo
18:30 - 23:35
LCY
-
POA
33h 05m
2 stops
Lufthansa Logo
14:20 - 17:55
POA
-
LCY
23h 35m
2 stops
£1,306Lufthansa
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.

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 May, where tickets cost £785 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £1,316 and £1,263 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know - Cheap tickets from London to Porto Alegre

Low seasonJune
Cheapest flight£320
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (29% 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 £320 for a one-way ticket and £910 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?

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

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

    The two airlines most popular with KAYAK users for flights from London to Porto Alegre are KLM and Virgin Atlantic. With an average price for the route of £947 and an overall rating of 7.8, KLM is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £1,487 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 1471 reviews
7.1Entertainment
7.8Boarding
7.3Food
8.4Crew
7.6Comfort
Airline reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

2.0 MediocreNewton, Mar 2026
IAD - AMS
Read more KLM reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

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.

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

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

Apart of Sky miles delta. And they go everywhere in Brazil

There was a mechanical issue with the plane that they had to work on before we could take off. That's fine, by all means, PLEASE make sure the mechanics are functioning properly. What was a problem was the fact that we sat on the tarmac for 4.5 hours without moving, without letting us off the plane, and without climate control and air running through the plane. There was no explanation as to what was going on; they just kept promising that it would be "15 minutes, then we are on our way." At one point, they even switched the entire crew out and told everyone we just needed to wait for new employees to show up. Then, as the 4 hours were not moving, an hour before the full refund, they made a big show about "the flight starting and the doors are locked, so you have to sit down." We didn't move for another 40 minutes; they were just trying to skirt around legalities that entitled us to restitution. When the flight finally was underway, the plane was gigantic but cramped in design, my entertainment screen kept freezing and glitching, and subtitles didn't work, and the crew was passive-aggressive. Terrible flight.

LATAM’s crews are fine, but God help you if you need any customer service. Their app and website never work, with error after error. Trying to solve anything over the phone is painful, and lastly, the boarding pass LATAM gave me to board the flight with Delta was invalid and I had to purchase an emergency one-way ticket at the last minute to get home.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Poor, the airline was not able to help me move flights.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

No difference between business class and normal same seat everything same, waste of money

Absolutely unacceptable level of service for a Business class: lousy drink and food options, disgusting food (inedible meat, watery rice, etc...), pathetic level of attentiveness from staff, Business class restrooms were not accessible for long periods because blocked of by staff...overall extremely disappointing, will NEVER fly Business on TAP again.

It was a good experience overall. We were however delayed by over 3 hours due to a security issue with one of the passengers inadvertently leaving a power bank in a luggage she was using as carrying on but then had to be moved int check in due to spacing issues. The airline staff had requested that she checked her bags in, but should have reminded her about removing all hazardous material like her power bank. When she eventually remembered as we were on the plane, we had to turn back and go through security all over again. Hence delaying our takeoff. The incident could have been prevented if staff reminded these passengers to remove their power banks.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

We upgraded to business class. Nice seat with lots of room but otherwise not impressive.

this flight was awful from pre-boarding to on the plane. There needs to be more coordination between TAP and My Way. We were in first class and I am handicapped. BY the time we got on the plane there was no place for our baggage and the crew did not handle the situation well. They gave us an argument and said that we'd have to have it checked. Then, after I complained they moved some people's bags to put our small carry ons several seats back of our seats which were in Row 4.

Negative. Food was awful, seat broken, flight was late, baggage lost and damaged

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Wonderful just hope the had more direct flights to Boston

Didn't like much. Wheelchair assistance was almost nonexistent. No one at TAP check in process helpful. On the plane, stewards were not friendly and disorganized. Food was terrible for 8 hr flight. We were skipped at snack time and even though we tried to get attention using overhead call system no one even looked up at us to acknowledge. Being at the back of first section and by the lavatory we only were able to request when they came to pick up everyone else's garbage and they were nonchalant...no apology or even choice. The 1/2 half bread with slice of cheese was a waste. Deplaning was horrible but I'll blame lisbon airport for that. Plane left late at made good time still arrived about 15 behind schedule and for using remote deplaning and bus to terminal took another 20 min to gate. Those with connections were highly stressed. Took us 2 hrs from landing to get to ground transportation and exit airport. And that was with wheelchair assistance.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

The service and food was excellent. The remote control for entertainment did not function properly.

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.

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

Information on your arrival and departure airports