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Cheap flights from Porto Alegre to London Heathrow Airport from £341

POA — LHR
17 Oct — 24 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto Alegre to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Porto Alegre to Heathrow

Tue 17/1112:30 -
2 stops26h 50m
Tue 24/1106:30 -
2 stops20h 20m
Deal found 15/9£785
Fri 13/1108:35 -
2 stops28h 05m
Mon 23/1116:30 -
2 stops33h 00m
Deal found 12/9£788
Mon 2/1114:15 -
2 stops20h 35m
Fri 13/1106:30 -
2 stops20h 20m
Deal found 13/9£805
Fri 13/1105:40 -
2 stops33h 40m
Mon 23/1106:30 -
2 stops20h 20m
Deal found 14/9£807
Tue 10/1111:45 -
2 stops23h 05m
Fri 20/1106:30 -
2 stops20h 20m
Deal found 15/9£813
Sun 1/1105:05 -
2 stops29h 45m
Sat 14/1117:35 -
2 stops33h 15m
Deal found 15/9£825
Mon 30/1110:40 -
2 stops26h 00m
Mon 29/316:30 -
2 stops43h 25m
Deal found 16/9£831
Thu 5/1114:15 -
2 stops22h 50m
Thu 19/1111:45 -
2 stops49h 30m
Deal found 16/9£843

Find flight deals from Porto Alegre to Heathrow

Round-trip from

£785

One-way from

£341

Popular in

January

Cheapest in

November

Average price

£958
GOL
  • GOL
  • 17/11-24/11
  • 4 total stops
  • 47h 10m total
  • Porto Alegre to London
Search Deals
15/11-31/12
  • 15/11-31/12
  • 3 total stops
  • 36h 40m total
  • Porto Alegre to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Porto Alegre to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Mon 8/3

14:15-14:35

2 stops21h 20m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£450
Fastest return journey

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Tue 15/12

18:00-17:00

2 stops20h 00m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£472

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Wed 7/10

13:40-15:35

2 stops21h 55m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£529

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Wed 7/10

13:45-15:35

3 stops21h 50m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£612

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Wed 17/2

11:05-14:05

1 stop24h 00m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£616

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Mon 8/3

10:45-14:05

1 stop24h 20m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£630

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Thu 4/3

12:30-14:25

3 stops46h 55m

London Heathrow

Wed 31/12

00:00-20:00

Nonstop0h 00m

£642

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Fri 13/11

19:40-16:05

2 stops41h 25m

London Heathrow

Mon 23/11

06:30-23:50

2 stops20h 20m

£805

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Tue 2/3

14:15-13:50

2 stops20h 35m

London Heathrow

Fri 12/3

17:35-14:40

2 stops24h 05m

£915

Porto AlegreLondon

POA Porto Alegre Salgado Filho - LHR London Heathrow

POALHR

Porto Alegre Salgado Filho

Tue 26/1

11:05-14:05

1 stop24h 00m

London Heathrow

Tue 23/2

17:25-10:00

2 stops19h 35m

£918

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Porto Alegre to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Porto Alegre with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Porto Alegre to London Heathrow Airport

What is the cheapest month to book a flight from Porto Alegre to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Porto Alegre to London Heathrow Airport (average of £655). Flying from Porto Alegre to London Heathrow Airport in January is currently the most expensive (average of £1,315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Porto Alegre to London Heathrow Airport?

Airfare is below average for this route at the moment.

Porto Alegre to London Heathrow Airport flights typically cost between £927 and £1,117 in November.
The cheapest return price found within the last 5 days was £785 on GOL (17 Nov–24 Nov).

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with LATAM Airlines and TAP AIR PORTUGAL from Porto Alegre to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,985 reviews
Check prices

Food

6.7

Crew

8.0

Entertainment

7.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
LATAM Airlines
7.4
Good
1,985 reviews
LATAM Airlines
7.4
Good
1,985 reviews
Check prices

Food

6.7

Crew

8.0

Entertainment

7.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
TAP AIR PORTUGAL
7.2
Good
2,385 reviews
LATAM Airlines
7.4
Good
1,985 reviews
Check prices

Food

6.7

Crew

8.0

Entertainment

7.0

Boarding

7.5

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.

Related info for your journey

  • What airport do you fly from for flights from Porto Alegre to London Heathrow?

    Located just 4.0 mi from the city center, Porto Alegre Salgado Filho is the airport most travelers will use when flying to London Heathrow from Porto Alegre. Booking flights from Salgado Filho (POA) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.

  • How long is the flight from Porto Alegre to London Heathrow Airport?

    GOL can get you from Porto Alegre to London Heathrow Airport in just under 41h 25m. Your travel time can differ by up to . Airlines will cover a distance of 6410 mi.

  • What are the cheapest airlines flying from Porto Alegre to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Porto Alegre to London Heathrow Airport round-trip from £752. Another airline that can offer you cheap pricing is TAP AIR PORTUGAL. LATAM Airlines is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Porto Alegre to Heathrow that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto Alegre to Heathrow.

  • Can I find deals for business class flights from Porto Alegre to Heathrow?

    Yes. Cheapflights offers flight deals from Porto Alegre to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Porto Alegre to London Heathrow Airport (average of £655). Flying from Porto Alegre to London Heathrow Airport in January is currently the most expensive (average of £1,315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
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Milton Keynes
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Southall
Watford
Swindon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Porto Alegre to Heathrow

Porto Alegre to Gatwick flights

Top 2 airlines flying from Porto Alegre to Heathrow

AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£752Average£1,030FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
TAP AIR PORTUGALCheapest£792Average£1,006FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

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Why should you use Cheapflights to find cheap flight tickets from Porto Alegre to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Porto Alegre.

Can Cheapflights find flights from Porto Alegre to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Porto Alegre shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Porto Alegre to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Porto Alegre to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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