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Cheap flights from Porto Alegre to London Heathrow Airport from £377

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
POA — LHR
11 Jul — 18 Jul1
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
Explore the most affordable flight options available from Porto Alegre to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 June 2026.

Mon 3/809:45
POA
-
LHR
2 stops19h 55m
Multiple Airlines
Thu 3/916:30
LHR
-
POA
2 stops25h 50m
Multiple Airlines
Deal found 8/6£774
Tue 28/714:00
POA
-
LHR
2 stops22h 15m
GOL
Tue 18/808:40
LHR
-
POA
2 stops20h 00m
GOL
Deal found 8/6£775
Sun 2/814:00
POA
-
LHR
2 stops24h 35m
GOL
Mon 17/808:40
LHR
-
POA
2 stops30h 10m
GOL
Deal found 8/6£778
Mon 3/810:30
POA
-
LHR
2 stops19h 10m
ITA Airways
Mon 24/816:30
LHR
-
POA
2 stops24h 40m
ITA Airways
Deal found 9/6£779
Mon 27/718:25
POA
-
LHR
2 stops17h 50m
GOL
Tue 18/808:40
LHR
-
POA
2 stops37h 05m
GOL
Deal found 10/6£784
Tue 16/618:35
POA
-
LHR
2 stops17h 40m
GOL
Wed 24/606:15
LHR
-
POA
2 stops21h 25m
GOL
Deal found 7/6£787
Fri 13/1115:30
POA
-
LHR
2 stops19h 35m
LATAM Airlines
Mon 23/1120:15
LHR
-
POA
2 stops17h 45m
LATAM Airlines
Deal found 8/6£792

Find flight deals from Porto Alegre to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 June 2026.

Round-trip from

£774

One-way from

£377

Popular in

January

Cheapest in

November

Average price

£989
3/8-3/9
  • 3/8-3/9
  • 4 total stops
  • 45h 45m total
  • Porto Alegre to London
Search Deals
LATAM Airlines
  • LATAM Airlines
  • 30/10
  • 1 total stop
  • 24h 00m total
  • Porto Alegre to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto Alegre to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 June 2026.
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 - LHR

POALHR

Porto Alegre Salgado Filho

Mon 27/7

01:00-22:00

1 stop17h 00m

London Heathrow

Tue 18/8

08:00-21:45

1 stop17h 45m

£938

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 10/8

18:25-21:25

3 stops47h 00m

London Heathrow

Tue 18/8

08:40-00:40

2 stops20h 00m

£940
Fastest return journey

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 17/10

01:40-22:00

1 stop16h 20m

London Heathrow

Tue 3/11

06:00-19:40

1 stop16h 40m

£959

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 23/6

14:20-12:40

2 stops18h 20m

London Heathrow

Tue 7/7

18:30-08:25

2 stops17h 55m

£989

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 30/7

18:25-17:35

2 stops19h 10m

London Heathrow

Mon 10/8

08:40-00:40

2 stops20h 00m

£1,019

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Mon 17/8

01:00-12:45

1 stop31h 45m

London Heathrow

Thu 14/1

06:00-19:20

1 stop16h 20m

£1,043

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 2/8

18:35-21:25

3 stops46h 50m

London Heathrow

Mon 17/8

08:55-23:40

2 stops18h 45m

£1,089

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 1/8

06:00-21:25

3 stops35h 25m

London Heathrow

Sat 29/8

08:55-23:40

2 stops18h 45m

£1,092

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 13/10

11:00-08:10

1 stop17h 10m

London Heathrow

Tue 3/11

22:00-17:45

1 stop22h 45m

£1,100

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 5/11

11:20-14:55

2 stops48h 35m

London Heathrow

Thu 19/11

15:20-10:35

2 stops46h 15m

£1,117

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Showing 1-10 of 19 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 £658). Flying from Porto Alegre to London Heathrow Airport in January is currently the most expensive (average of £1,192). 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?

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 0 different airlines.

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

    TAP AIR PORTUGAL and SWISS can get you from Porto Alegre to London Heathrow Airport in just under 17h. Your travel time can differ by up to 10h 30m. Airlines will cover a distance of 6410 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £658). Flying from Porto Alegre to London Heathrow Airport in January is currently the most expensive (average of £1,192). 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
Milton Keynes
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
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Ipswich
Poole
Guildford
Romford

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Alternative routes for Porto Alegre to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Porto Alegre to Gatwick flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Porto Alegre to Heathrow?

Cheapflights makes it easy to find Porto Alegre to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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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