POA - LON

£290 Find Cheap Flights from Porto Alegre to London – Compare and Save

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 22/10. 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

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Everything you should know

Cheapest return fare
£657
Typical prices: £720-£982
LATAM Airlines
Wed 14/10Wed 25/11
POA - LHR • 1 stop
Cheapest one-way flight
£290
Typical prices: £367-£487
LATAM Airlines
Thu 22/10
POA - LHR • 1 stop
Top airlines
Cheapest • from £657 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Porto Alegre and London. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £966 (return)
Shortest trip • 15h 03m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, 14 Oct - Wed, 25 Nov
LATAM Airlines Logo
16:15 - 15:05
POA
-
LHR
18h 50m
1 stop
LATAM Airlines Logo
20:15 - 08:30
LHR
-
POA
15h 15m
1 stop
£657LATAM Airlines
Wed, 14 Oct - Wed, 25 Nov
LATAM Airlines Logo
17:50 - 15:05
POA
-
LHR
17h 15m
1 stop
LATAM Airlines Logo
20:15 - 08:30
LHR
-
POA
15h 15m
1 stop
£662LATAM Airlines
Wed, 18 Nov - Mon, 23 Nov
LATAM Airlines Logo
09:10 - 14:05
POA
-
LHR
25h 55m
1 stop
LATAM Airlines Logo
20:15 - 12:15
LHR
-
POA
19h 00m
1 stop
£663LATAM Airlines
Thu, 15 Oct - Wed, 25 Nov
LATAM Airlines Logo
13:40 - 15:05
POA
-
LHR
21h 25m
1 stop
LATAM Airlines Logo
20:15 - 17:15
LHR
-
POA
24h 00m
2 stops
£663LATAM Airlines
Thu, 15 Oct - Wed, 25 Nov
LATAM Airlines Logo
10:00 - 15:05
POA
-
LHR
25h 05m
2 stops
LATAM Airlines Logo
20:15 - 17:15
LHR
-
POA
24h 00m
2 stops
£663LATAM Airlines
Wed, 18 Nov - Mon, 23 Nov
LATAM Airlines Logo
09:10 - 14:05
POA
-
LHR
25h 55m
1 stop
LATAM Airlines Logo
20:15 - 12:15
LHR
-
POA
19h 00m
1 stop
£663LATAM Airlines
Wed, 14 Oct - Wed, 25 Nov
LATAM Airlines Logo
17:50 - 15:05
POA
-
LHR
17h 15m
1 stop
LATAM Airlines Logo
20:15 - 13:50
LHR
-
POA
20h 35m
2 stops
£664LATAM Airlines
Thu, 15 Oct - Tue, 24 Nov
LATAM Airlines Logo
10:00 - 15:05
POA
-
LHR
25h 05m
2 stops
LATAM Airlines Logo
20:15 - 08:30
LHR
-
POA
15h 15m
1 stop
£664LATAM Airlines
Thu, 15 Oct - Thu, 26 Nov
LATAM Airlines Logo
13:40 - 15:05
POA
-
LHR
21h 25m
1 stop
LATAM Airlines Logo
20:15 - 12:15
LHR
-
POA
19h 00m
1 stop
£664LATAM Airlines
Thu, 12 Nov - Mon, 23 Nov
TAP AIR PORTUGAL Logo
00:45 - 21:35
POA
-
LHR
17h 50m
1 stop
TAP AIR PORTUGAL Logo
18:30 - 19:40
LHR
-
POA
28h 10m
1 stop
£673TAP AIR PORTUGAL
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 October.

Flight prices are below average for this route right now.

Flights to London from Porto Alegre usually cost between £812 and £1,004 in October.
The lowest price found in the past 5 days was £657 on LATAM Airlines (14 Oct–25 Nov).

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 March, where tickets cost £800 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is £1,095 and £1,022 respectively.

Good to know - Cheap tickets from Porto Alegre to London

Low season

March

Cheapest flight

£290
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 2% lower 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 5 days, the lowest price for a flight from Porto Alegre to London was £290 for a one-way ticket and £657 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 TAP AIR PORTUGAL?

    The two airlines most popular with KAYAK users for flights from Porto Alegre to London are LATAM Airlines and TAP AIR PORTUGAL. With an average price for the route of £897 and an overall rating of 7.4, LATAM Airlines is the most popular choice. TAP AIR PORTUGAL is also a great choice for the route, with an average price of £792 and an overall rating of 7.2.

  • 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 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.
7.4
LATAM AirlinesOverall score based on 1968 reviews
7.5Boarding
6.7Food
8.0Crew
7.0Entertainment
7.3Comfort
Airline reviews

LATAM is a great airline who takes care of there guests. They consistently walk around and see if you need water in addition to taking care of all the passengers. The chicken in process is really easy and I’m always offered a chance for an upgrade which I appreciate.

10.0 ExcellentChris, Feb 2026
GRU - MCO
Read more LATAM Airlines reviews

LATAM is a great airline who takes care of there guests. They consistently walk around and see if you need water in addition to taking care of all the passengers. The chicken in process is really easy and I’m always offered a chance for an upgrade which I appreciate.

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.

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.

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 .

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

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.

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

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

Let’s be honest. You know you are boarding a flight where the seats don’t recline and you need to pay double the price for bread, gin and water. But beware, they test your tolerance to torture pre boarding. They call all British passport holders. Then tag cabin luggage to be checked. And the ground staff pretend not to know what is happening and just says - please ask the other staff.

It poured rain, our luggage was sitting out in it uncovered on the transport cart while our plane was delayed! Nice business class plane for short flight to Lisbon, but more delay & rain in Lisbon, with terrible Business class seat with no entertainment & cold food on longer flight to London…ALL LUGGAGE AND CLOTHES INSIDE THEM WERE SOAKED THROUGH!!! Could only try with hair dryer to get some drying before quick turn round to train trip.

Menzies group staff not very sympathetic good at breaking up families during the boarding process

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.

Check-in guidance for transfer flight, boarding, in-flight service, seat comfort, etc.

Not much to like. Check-in and bag drop procedures are a crowded, disorganized and confusing mess. Agents were grumpy and unhelpful, somehow expecting passengers to automatically know and understand the airline's procedures. Boarding was chaotic and included a stand-up, sardine-packed bus ride to a stairway pushed up to the aircraft out on the tarmac. Passengers were left waiting in the bus for a lengthy period on both ends. Flight departure and arrival were delayed by passengers scrambling to find space for bags in the overhead storage. Many passengers not in compliance with carry-on rules. Everything you could hate about flying in this ride.

Its a short flight with no entertainment. The food was so so.

Dreadful - queued to get onto a bus, stood for 10 minutes on the bus, drove to the plane, stood for another 25 minutes on the bus outside the plane. When allowed on we could only board from the front & were seated in the furthest row back. The second bus was allowed to board from the back so chaos ensued!. The flight was an hour late - nobody said why, nobody apologised. On arrival at Heathrow we stood for nearly 30 minutes before being allowed off - again with no explanation,

Adequate. You get what you pay for. Absolutely no frills but a cost effective way to travel between European countries.

The airline made last minute changes to our business class seats splitting our family of 4 with young children who had pre-booked a row of 4 seats. The seat was also dirty and sticky. Our pre-ordered child meals were also not available. :(

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

Information on your arrival and departure airports