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£456 Find Cheap Flights to Porto Alegre – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£738
Typical prices: £878-£1,417
TAP AIR PORTUGAL
Fri 16/11Sat 1/12
LHR - POA • 1 stop
Cheapest one-way flight
£456
Typical prices: £525-£773
Multiple Airlines
Thu 6/12
LGW - POA • 3 stops
Top airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
Top routes
Cheapest • 10% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 19 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Porto Alegre!
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Flight Deals

Cheap Flights to Porto Alegre

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Porto Alegre

Mon, 16 Nov - Tue, 1 Dec
TAP AIR PORTUGAL Logo
18:30 - 19:40LHR  London Heathrow-POA Porto Alegre Salgado Filho
28h 10m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
21:15 - 22:40POA  Porto Alegre Salgado Filho-LHR London Heathrow
22h 25m1 stop Lisbon Humberto Delgado
£738TAP AIR PORTUGAL
Mon, 16 Nov - Tue, 1 Dec
TAP AIR PORTUGAL Logo
10:40 - 19:40LGW  London Gatwick-POA Porto Alegre Salgado Filho
36h 00m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
21:15 - 15:45POA  Porto Alegre Salgado Filho-LGW London Gatwick
15h 30m1 stop Lisbon Humberto Delgado
£742TAP AIR PORTUGAL
Mon, 16 Nov - Tue, 1 Dec
Multiple Airlines Logo
20:15 - 19:40LGW  London Gatwick-POA Porto Alegre Salgado Filho
26h 25m2 stops Frankfurt am Main Lisbon Humberto Delgado
Multiple Airlines Logo
08:25 - 09:50POA  Porto Alegre Salgado Filho-LGW London Gatwick
22h 25m2 stops Rio de Janeiro–Galeão Intl Lisbon Humberto Delgado
£765Multiple Airlines
Fri, 13 Nov - Sat, 28 Nov
Multiple Airlines Logo
20:50 - 19:40LHR  London Heathrow-POA Porto Alegre Salgado Filho
25h 50m2 stops Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
21:10 - 15:30POA  Porto Alegre Salgado Filho-LHR London Heathrow
15h 20m1 stop Lisbon Humberto Delgado
£792Multiple Airlines
Sun, 21 Feb - Sun, 14 Mar
Lufthansa Logo
17:00 - 00:10MAN  Manchester-POA Porto Alegre Salgado Filho
34h 10m2 stops Munich Franz Josef Strauss Sao Paulo Guarulhos Intl
Lufthansa Logo
18:00 - 17:00POA  Porto Alegre Salgado Filho-MAN Manchester
44h 00m2 stops Sao Paulo Guarulhos Intl Frankfurt am Main
£843Lufthansa
Mon, 23 Nov - Fri, 27 Nov
LATAM Airlines Logo
20:15 - 17:15LHR  London Heathrow-POA Porto Alegre Salgado Filho
24h 00m1 stop Sao Paulo Guarulhos Intl
LATAM Airlines Logo
18:00 - 14:05POA  Porto Alegre Salgado Filho-LHR London Heathrow
17h 05m1 stop Sao Paulo Guarulhos Intl
£922LATAM Airlines
Mon, 23 Nov - Fri, 27 Nov
LATAM Airlines Logo
20:15 - 22:45LHR  London Heathrow-POA Porto Alegre Salgado Filho
29h 30m2 stops Sao Paulo Guarulhos Intl Curitiba Afonso Pena
LATAM Airlines Logo
18:00 - 14:05POA  Porto Alegre Salgado Filho-LHR London Heathrow
17h 05m1 stop Sao Paulo Guarulhos Intl
£922LATAM Airlines
Thu, 17 Dec - Thu, 7 Jan
Lufthansa Logo
17:45 - 10:00MAN  Manchester-POA Porto Alegre Salgado Filho
19h 15m2 stops Frankfurt am Main Sao Paulo Guarulhos Intl
Lufthansa Logo
18:00 - 22:50POA  Porto Alegre Salgado Filho-MAN Manchester
25h 50m2 stops Sao Paulo Guarulhos Intl Munich Franz Josef Strauss
£1,438Lufthansa
Sat, 12 Dec - Mon, 28 Dec
Virgin Atlantic Logo
20:15 - 08:30LHR  London Heathrow-POA Porto Alegre Salgado Filho
15h 15m1 stop Sao Paulo Guarulhos Intl
Virgin Atlantic Logo
20:05 - 14:05POA  Porto Alegre Salgado Filho-LHR London Heathrow
15h 00m1 stop Sao Paulo Guarulhos Intl
£1,612Virgin Atlantic
Sat, 19 Dec - Wed, 20 Jan
Virgin Atlantic Logo
20:15 - 08:30LHR  London Heathrow-POA Porto Alegre Salgado Filho
15h 15m1 stop Sao Paulo Guarulhos Intl
Virgin Atlantic Logo
20:05 - 14:05POA  Porto Alegre Salgado Filho-LHR London Heathrow
15h 00m1 stop Sao Paulo Guarulhos Intl
£1,648Virgin Atlantic
Booking Insights

Price, demand, and travel trends for United Kingdom to Porto Alegre flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from the United Kingdom to Porto Alegre with more confidence.

What is the cheapest flight to Porto Alegre?

London Heathrow Airport to Porto Alegre is the cheapest route at £738 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Porto Alegre?

A return flight to Porto Alegre costs £1,095 on average, based on data over the past 12 months on KAYAK. Return fares from Manchester average £1,009, while London runs a bit higher at £1,105.

What is the cheapest day to fly to Porto Alegre?

Thursday is the cheapest day to fly to Porto Alegre at £894 return on average over the past 12 months on KAYAK. Saturday is the most expensive at £1,306.

What is the cheapest month to fly to Porto Alegre?

•April is the cheapest month to fly to Porto Alegre with an average price of £773 return.
•July (£1,405) and December (£1,365) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Porto Alegre?

Morning flights to Porto Alegre are the cheapest at £916 return on average. Night flights are the most expensive at £1,201.

What is a good deal for flights to Porto Alegre?

Flights under £878 are considered a good deal. 25% of KAYAK users found return flights to Porto Alegre at or below these prices, with the lowest fares from:
•Edinburgh £848
•Manchester £856.

When are flights to Porto Alegre the cheapest?

Flights to Porto Alegre are cheapest 19 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to Porto Alegre

Low season

September

Cheapest flight

£456
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flights from London Gatwick Airport to Porto Alegre

When to book flights to Porto Alegre

Are your dates flexible? Find out the best times to travel to Porto Alegre based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Porto Alegre, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Porto Alegre is a good deal?

    A good deal on a flight to Porto Alegre is around £878 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Where can I fly from to get the cheapest fares to Porto Alegre?

    Based on fares booked in the past 5 days, the cheapest flights to Porto Alegre are from:
    • London, from £738 return

  • How expensive are last-minute flights to Porto Alegre?

    Last-minute fares to Porto Alegre – booked within 2 weeks of departure – run 9% above the average return fare of £1,095.

  • What is the difference between the most popular and the most frequent airline at Porto Alegre?

    British Airways operates the most flights from the United Kingdom to Porto Alegre at 0 per week, while Virgin Atlantic is the airline most often selected by KAYAK users searching for flights from the United Kingdom to Porto Alegre. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

Your guide to booking Porto Alegre flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Porto Alegre, aim to book around 19 weeks before you fly. That window historically saves about 32% versus last-minute pricing based on KAYAK booking data over the last 12 months.
  • For flights to Porto Alegre, recent KAYAK data shows that stronger deals tend to be around £878 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Porto Alegre in April. Return fares historically average £773 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to £286 per return. Morning flights to Porto Alegre average £916 compared to £1,201 for evening flights. See the time-of-day chart above for the full breakdown.

Reviews of the top 4 airlines flying to Porto Alegre

 
Need help choosing which airline to fly with 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.
7.4
LATAM AirlinesOverall score based on 1980 reviews
7.0Entertainment
7.3Comfort
8.0Crew
6.7Food
7.5Boarding
Airline reviews

Overall, a good experience on this leg of the trip

10.0 ExcellentAnonymous, Aug 2026
Read more LATAM Airlines reviews

Overall, a good experience on this leg of the trip

The arrival was pretty bad. Long waits for the bus to deplaning the airplane.

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.

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 .

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.

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

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

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

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

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

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.

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

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.

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

My seat was the only seat where the tv didn’t work. The crew Carol and Jua were very rude and refused to move me and my companion to a seat where the tv was working. I traveled on a 8 hour flight with no entertainment nor able to choose my food. I was told by Jua to call customer service for compensation. The customer service team and escalation team refuses to compensate me even after verifying and speaking to the flight crew, whom confirmed they told me that. Horrible service, horrible freezing cold flight. I would never fly Jet Blue again.

Chaotic boarding with no announcements. Carry on luggage needs to be checked. Bare minimum zero frill flights. Not a whole lot of anything positive to be said .

Bad boarding, threat to force bag check mid journey, lines, late, buses, more waiting awful end to end.

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.

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.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

The staff were great - very friendly and chatty. I checked in online at 9.30am, when check in had opened at 1.30am, and choices were already very limited, so act fast.

I suspect that there was an item pilfered from my bag at the TAP automated check-in counter on March 26th at Heathrow Airport around 11:30am. I think that the employee assisting me with my bags took something out of it when I was not paying attention because today, March 27th there is a notebook missing. Please check the camera to see if indeed this occurred. My description: Male, African Decent, 5'8, 180lbs medium build, wearing trousers and a jacket. Employee description: Female, Indian Decent (guessing) 5'7, slight build. Flight 1359, London to Lisbon.

Very little space between chairs, making any long travel very uncomfortable. Food is also very basic.

Cobrar por escolher assento em voos longos é desumano e um tanto quanto covarde, pois já vamos passar horas sentados. O banheiro não tinha papel e estava bem sujo. O avião era um modelo novo emlderno. O entretenimento muito bom com filmes modernos e a refeição estava muito boa. Vôo atrasou demais.

Good communication via the app regarding the delayed departure. Uncomfortable seat for tall passengers. Could not straighten my legs.

3 4 3 seats are cruel, the average person should be able to fit in the seats and this was not the case. I was at an angle for hours just to remain in my seat .

Someone sat in my seat and this made boarding protracted and unpleasant. The stewardesses kept saying, “it is important that everyone be seated — or we will be further delayed,” but for a long time they did not tell me where to sit. At the end of the flight a baby screamed loudly for several minutes and it took ninety minutes (!) to get through EU passport and customs. We had to stand the whole time in a an overheated room. The seat on the plane was narrow. These things are not all Lufthansa’s fault but they made for a somewhat unpleasant trip.

Everything about the flight was excellent except for the fact that we had to wait one hour on the tar app and then I had to race to catch my connecting flight with the next stop

The flight on time, flawless check in and boarding process, the crew was very friendly.

Generally OK. The very worst part was the food we were served (on a special diet) which the crew apologised for and said they took photos for there managers. This flight was using a code-share from Discovery Airways, so perhaps not Lufthansa's direct fault. The general food was far better but definitely not plentiful unlike some other airlines. Otherwise it was a nothing special experience unlike the superb time we had last year for a similar route on Cathay!

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.

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.

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.

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