LHR - POA

£358 Find Cheap Flights from London Heathrow Airport 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 Heathrow to Porto Alegre departing on 28/4. 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

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Everything you should know

Cheapest return fare
£774
Overall average: £749
Multiple Airlines
Sat 11/4Thu 30/4
LHR - POA • 3 stops
Cheapest one-way flight
£358
Typical prices: £526-£564
Multiple Airlines
Tue 28/4
LHR - POA • 2 stops
Top airlines
Cheapest • from £817 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and Porto Alegre. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £1,052 (return)
Shortest trip • 16h 39m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% 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 Heathrow to Porto Alegre (LHR-POA)

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

Sat, 11 Apr - Thu, 30 Apr
Multiple Airlines Logo
20:50 - 00:55
LHR
-
POA
32h 05m
3 stops
Multiple Airlines Logo
10:25 - 15:35
POA
-
LHR
25h 10m
2 stops
£774Multiple Airlines
Sat, 11 Apr - Fri, 1 May
Multiple Airlines Logo
20:50 - 00:55
LHR
-
POA
32h 05m
3 stops
Multiple Airlines Logo
10:35 - 15:35
POA
-
LHR
25h 00m
2 stops
£808Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
Lufthansa Logo
18:30 - 13:10
LHR
-
POA
22h 40m
2 stops
Lufthansa Logo
11:00 - 17:40
POA
-
LHR
26h 40m
2 stops
£817Lufthansa
Sat, 18 Apr - Tue, 19 May
LATAM Airlines Logo
21:20 - 19:20
LHR
-
POA
26h 00m
1 stop
LATAM Airlines Logo
21:40 - 15:05
POA
-
LHR
37h 25m
2 stops
£839LATAM Airlines
Sat, 18 Apr - Tue, 19 May
LATAM Airlines Logo
21:20 - 11:25
LHR
-
POA
18h 05m
1 stop
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
£857LATAM Airlines
Mon, 4 May - Thu, 21 May
LATAM Airlines Logo
21:20 - 19:20
LHR
-
POA
26h 00m
1 stop
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
£859LATAM Airlines
Mon, 4 May - Thu, 21 May
LATAM Airlines Logo
21:20 - 16:45
LHR
-
POA
23h 25m
2 stops
LATAM Airlines Logo
20:05 - 15:05
POA
-
LHR
15h 00m
1 stop
£860LATAM Airlines
Tue, 9 Jun - Tue, 16 Jun
LATAM Airlines Logo
21:20 - 09:20
LHR
-
POA
16h 00m
1 stop
LATAM Airlines Logo
17:50 - 15:05
POA
-
LHR
17h 15m
1 stop
£861LATAM 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
£863LATAM Airlines
Tue, 5 May - Sat, 30 May
LATAM Airlines Logo
21:20 - 09:20
LHR
-
POA
16h 00m
1 stop
LATAM Airlines Logo
21:40 - 15:05
POA
-
LHR
37h 25m
2 stops
£866LATAM Airlines
Booking Insights

KAYAK’s insights & trends for Heathrow to Porto Alegre flights

Get data-powered insights and trends into flights from Heathrow 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 Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to Porto Alegre is April, where tickets cost £749 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £1,310 and £1,135 respectively.

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

Low seasonJune
Cheapest flight£358
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Heathrow Airport to Porto Alegre

When to book flights from Heathrow to Porto Alegre

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

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Porto Alegre was £358 for a one-way ticket and £774 for a return.

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

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Porto Alegre, also known as Porto Alegre Salgado Filho.

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

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

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

    SkyTeam, and Star Alliance are the airline alliances operating flights between London Heathrow Airport 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, Virgin Atlantic or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from London to Porto Alegre are Virgin Atlantic and LATAM Airlines. With an average price for the route of £1,586 and an overall rating of 7.5, Virgin Atlantic 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 7.4.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport 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 Heathrow Airport 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 London Heathrow Airport 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 Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 Heathrow Airport 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 Heathrow 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 Heathrow 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.
7.5
Virgin AtlanticOverall score based on 680 reviews
8.2Crew
7.3Comfort
7.6Entertainment
7.7Boarding
6.9Food
Airline reviews

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

8.0 ExcellentAditya, Feb 2026
LHR - JFK
Read more Virgin Atlantic reviews

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

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.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Good check in process Poor information on payments at Lima airport

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

On board crew was very good. Crew was friendly, snacks were good, especially the chips. Seats seemed a bit cramped. Boarding seemed unorganized, as we were instructed to get to the gate an hour early and then just stood around until boarding.

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.

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

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

The plane was small and one felt the turbulence much more. The lines to get through immigration were insanely long.

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.

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

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

From Casablanca to Lisbon our baggage 2 pound over they want me to pay $120 for 2 pound which unexpected we are two family 8 of us they counters lady her customer service is not good I fly frequently for my business next time fly with TAP Air I will think twice

The layover was only one hour and a huge line for passport control. If I didn’t cut the line and argue was every single official, I would’ve spent the night in this one. Obviously.TAP AIR people. do not take into account.this problem with their flight scheduling, which is extremely frustrating. Poor food choices, on the pasta was offered, they ran out of chicken right away. All the sodas and water poured in a tiny 70 mL cups, which is not enough to keep hydrated on the long flight. I had to ask for 34 cups at a time. Flight attendant seemed to be tired and overworked.

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.

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.

Boarding- Good Seat Comfort - OK Crew - Good Food - Mediocre On Time - Very Good

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

Information on your arrival and departure airports