POA - LON

£321 Find Cheap Flights from Porto Alegre to London

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 London departing on 27/5. 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 London

 
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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Everything you should know

Cheapest return fare
£629
Overall average: £757
LATAM Airlines
Thu 12/3Mon 16/3
POA - LHR • 2 stops
Cheapest one-way flight
£321
Typical prices: £560-£673
Multiple Airlines
Wed 27/5
POA - LHR • 2 stops
Top airlines
LATAM Airlines
Cheapest • from £629 (return)
LATAM Airlines
Best reviews • 7.5 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 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 14% price drop
August
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 London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Porto Alegre to London (POA-LON)

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

Thu, 12 Mar - Mon, 16 Mar
LATAM Airlines Logo
09:45 - 14:05
POA
-
LHR
25h 20m
2 stops
LATAM Airlines Logo
20:15 - 18:45
LHR
-
POA
25h 30m
2 stops
£629LATAM Airlines
Tue, 10 Mar - Wed, 18 Mar
TAP AIR PORTUGAL Logo
21:10 - 09:50
POA
-
LGW
33h 40m
1 stop
TAP AIR PORTUGAL Logo
16:35 - 17:55
LGW
-
POA
28h 20m
1 stop
£647TAP AIR PORTUGAL
Tue, 10 Mar - Wed, 18 Mar
TAP AIR PORTUGAL Logo
21:10 - 09:25
POA
-
LGW
33h 15m
2 stops
TAP AIR PORTUGAL Logo
16:35 - 17:55
LGW
-
POA
28h 20m
1 stop
£651TAP AIR PORTUGAL
Tue, 10 Mar - Wed, 18 Mar
TAP AIR PORTUGAL Logo
21:10 - 17:30
POA
-
LHR
17h 20m
1 stop
TAP AIR PORTUGAL Logo
13:40 - 17:55
LHR
-
POA
31h 15m
1 stop
£659TAP AIR PORTUGAL
Thu, 12 Mar - Thu, 16 Apr
TAP AIR PORTUGAL Logo
00:45 - 21:35
POA
-
LHR
17h 50m
1 stop
TAP AIR PORTUGAL Logo
08:00 - 20:25
LHR
-
POA
16h 25m
1 stop
£674TAP AIR PORTUGAL
Tue, 10 Mar - Wed, 18 Mar
LATAM Airlines Logo
17:25 - 14:05
POA
-
LHR
41h 40m
2 stops
LATAM Airlines Logo
20:15 - 09:15
LHR
-
POA
16h 00m
1 stop
£682LATAM Airlines
Fri, 8 May - Sat, 16 May
GOL Logo
14:00 - 16:35
POA
-
LHR
22h 35m
2 stops
GOL Logo
06:15 - 23:40
LHR
-
POA
21h 25m
2 stops
£698GOL
Tue, 10 Mar - Wed, 18 Mar
ITA Airways Logo
08:25 - 10:55
POA
-
LCY
23h 30m
2 stops
ITA Airways Logo
16:45 - 13:10
LCY
-
POA
23h 25m
2 stops
£785ITA Airways
Tue, 10 Mar - Wed, 18 Mar
SWISS Logo
14:50 - 17:50
POA
-
LGW
24h 00m
2 stops
SWISS Logo
18:40 - 11:35
LGW
-
POA
19h 55m
2 stops
£804SWISS
Sun, 15 Mar - Sun, 22 Mar
ITA Airways Logo
08:25 - 16:10
POA
-
LCY
28h 45m
2 stops
ITA Airways Logo
16:45 - 10:05
LCY
-
POA
44h 20m
2 stops
£834ITA Airways
Booking Insights

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

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

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

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Porto Alegre to London departing in March.

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

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, 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 is February, where tickets cost £656 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £899 and £837 respectively.

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

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, 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, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know - Cheap tickets from Porto Alegre to London

Low seasonMarch
Cheapest flight£321
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from Porto Alegre to London Heathrow Airport

When to book flights from Porto Alegre to London

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

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

    In the last 3 days, the lowest price for a flight from Porto Alegre to London was £321 for a one-way ticket and £629 for a return.

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

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

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

    The two airlines most popular with KAYAK users for flights from Porto Alegre to London are LATAM Airlines and GOL. With an average price for the route of £797 and an overall rating of 7.5, LATAM Airlines is the most popular choice. GOL is also a great choice for the route, with an average price of £666 and an overall rating of 7.3.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Porto Alegre 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 Porto Alegre to London?

    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 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?

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

Reviews of the top 3 airlines flying from Porto Alegre to London

 
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 London? 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 1918 reviews
6.7Food
7.5Boarding
7.3Comfort
8.0Crew
7.0Entertainment
Airline reviews

We were not allowed to carry a bottle of water onto the 8 hour flight.

8.0 ExcellentAnonymous, Jan 2026
MDZ - LIM
Read more LATAM Airlines reviews

We were not allowed to carry a bottle of water onto the 8 hour flight.

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.

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

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.

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

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

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

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 .

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

The pilots landing and taking off was very bad on the first flight, the second one taking off was great but landing was also rough

The check in and on the ground experience is very poor. Their online check and trip management is the worst I have ever seen and they have long lines to check in at the airport, technology is glitchy/unusable and have exorbitant baggage fees. The flight itself is fine, although the food is about what you would expect and their was no functioning entertainment for an international flight.

My experience with this flight was extremely negative and resulted in serious financial and personal consequences. The flight departed with a significant delay, which caused me to miss my international connecting flight. As a direct result of this delay — which was entirely beyond my control — I was unable to reach my final destination on time, causing me to lose a previously scheduled hair transplant surgery that had been arranged months in advance. This was not a minor inconvenience. The surgery involved: • A reserved operating room • Medical and technical staff scheduled specifically for that date • Surgical instruments prepared in advance • Strict scheduling that does not allow for easy rescheduling Due to the airline’s delay and poor handling of the situation: • I lost already paid international flight tickets • I was forced to purchase new tickets, incurring duplicate expenses • I spent over six additional hours in airports, under stressful conditions • I incurred unexpected costs for meals and transportation • I lost a medical opportunity that cannot be easily recovered, along with the emotional distress associated with it Although the airline covered one night of hotel accommodation, this did not address the real impact of the delay, nor the significant damages caused by missing a critical medical procedure. The lack of punctuality, planning, and effective solutions reflects a serious lack of responsibility toward passengers, especially when international connections and time-sensitive medical commitments are involved. I do not recommend this airline for travelers with important schedules, medical appointments, or critical connections. In my case, the delay did not merely cause inconvenience — it resulted in the loss of a surgery and substantial financial damage.

I was not able to get on the flight due to delays out of Philadelphia. I arrived in MIA at 10:30pm and there was no one at the GOL Desk. Is there any flight credit available for this flight?

I have a hand injury and the flight attendant denied to help me with luggage, she said "she couldn't help me because I should manage my own way to put the luggage on the plane" SO RUDE

I had two around 6 hours flight and they did not even offer water to us.

Overall it was good. The food was not great quality and seats were very uncomfortable. But overall the staff was very friendly and helpful.

We flew with Avianca, some how they are not n sync, making the process a bit uncomfortable.

Unfortunately it was very disappointed experience. Our first flight our was delayed 2 hours, as a consequence we missed our connecting international flight. Customer server at Miami American Airlines was very disrespectful, gave us the worst replace itenarary for the next day that we had to spend 2 hours calling Gol to get a better itinerary otherwise we wouldn't make it on time to fulfill our trip purpose. We would have missed the reason to travel all the way to Brazil if we didn't change for a better itinerary. The worst thing is that our baggage was missing for 4 days. We had no cloths for all this time, plus the aggravation to locate our baggage. Nobody knew where our baggage was. We ended up picking it up at the airport when they said that they will bring them home. Unfortunately our experience was very dissatisfied.

Flight on time, check in and flight attendants courteous and helpful. Smaller plane for international flights, tight space, no comfortable.

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.

Late. Lack of updates. Rude hostesses. Terrible food. Lack of headphones.

Booked business with TAP from LAX to Cabo Verde - overall ok, but just doesn’t feel like business class. More of a budget airline

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

Flew Business class and did not like anything, flight attendants were rude and not helpful. Food was of poor quality and I did not eat meals.

I am not very tall, and had a difficult time getting my carry-on placed in the overhead bin while passengers were behind me waiting to get to their seats. After struggling with the luggage, I turned it around, and left it, knowing it was not properly placed, but believing there was adequate room for it in the bin. When the flight attendant came through the cabin, she asked whose bag it was, and scolded me for not positioning it correctly. She turned it around and moved on. I thought that her approach was totally unprofessional, calling out a passenger in that manner.

TAP‘s flight attendants seem to be among the least ambitious of all the international flight crews we’ve flown with. . When we left US and went to Portugal, and when we returned from Portugal, flight attendants were not very visible. Then did not offer frequent water breaks and when we had to go back to request water, I was almost an imposition. Meal quality was just average. The dinners were fine. Breakfast wraps were presented soggy.

There was no warning that they have added passport control after check in, the line was enormous and after 46 mins wait we missed our flight. Were forced to leave the airport and purchase new tickets at full price to board a later flight. TAP were unsympathetic and unhelpful.

Boarding we were jammed into a hot crowded bus waiting too long while another bus went in front of us. Appreciated blanket and pillow, movie available helped time pass, the food was not appealing so I had my own snacks, the flight is long, but nothing they can do about that. Staff adequate, flight good.

The business class seats were smaller and closer together than other airlines.

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

Information on your arrival and departure airports