What’s the fastest stopover option from London Heathrow Airport to Porto Alegre?

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 16h 03m.

What’s the top stopover airport for flights from London Heathrow Airport to Porto Alegre?

Sao Paulo (GRU) – chosen by Cheapflights users on 72% of one-stop itineraries from London Heathrow Airport to Porto Alegre on Cheapflights.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Porto Alegre?

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 2h 59m.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Porto Alegre?

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £796.

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

For as low as £921, LATAM Airlines can have you in Porto Alegre from London Heathrow Airport in 16h 45m. The distance between London Heathrow Airport and Porto Alegre is about 6410 mi. Both multi-stop and direct flights can be found to your destination and back.

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

Our cheapest airline available from London Heathrow Airport to Porto Alegre is LATAM Airlines. Our recent data shows that you can find tickets from as low as £761 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Virgin Atlantic, starting at £778 and £1,161 round-trip. You may be able to fly from London Heathrow Airport to Porto Alegre for 28% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Porto Alegre ranges from 70.0 - 130.0 inches per month. September is typically the wettest month, when rainfall can reach 130.0 mm. November is typically the driest time to visit Porto Alegre when rainfall is around 70.0 mm.

If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 13.0 C).

What are the most popular airlines that fly from London Heathrow Airport to Porto Alegre?

Consider LATAM Airlines, TAP AIR PORTUGAL or Virgin Atlantic when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Porto Alegre.

What is the cheapest time of day to fly from LHR to POA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Porto Alegre as you normally would.

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

Porto Alegre Salgado Filho (POA) is the airport you will fly into if you book a flight from London Heathrow to Porto Alegre. You should not have trouble finding flights to Salgado Filho from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Porto Alegre airport from London Heathrow. It is only a 4.0 mi journey from Salgado Filho (POA) to Porto Alegre’s city center.

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

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

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

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

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

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

£459+ Cheap Flights from London Heathrow Airport to Porto Alegre

Cheap flight deals from Heathrow to Porto Alegre

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Heathrow to Porto Alegre
Explore the most affordable flight options available from Heathrow to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Mon 16/1118:30 -

1 stop28h 10m

Tue 1/1221:15 -

1 stop22h 25m

Deal found 24/9£734

Tue 10/1108:15 -

3 stops26h 40m

Tue 17/1121:15 -

1 stop22h 25m

Deal found 26/9£764

Fri 13/1118:30 -

1 stop28h 10m

Thu 26/1101:30 -

1 stop30h 55m

Deal found 24/9£769

Fri 13/1115:45 -

2 stops23h 30m

Thu 26/1101:30 -

1 stop30h 55m

Deal found 24/9£773

Sun 8/1106:50 -

2 stops20h 30m

Sat 28/1121:10 -

1 stop15h 20m

Deal found 25/9£784

Tue 10/1106:50 -

2 stops20h 20m

Sat 28/1121:10 -

1 stop15h 20m

Deal found 25/9£789

Wed 11/1118:00 -

2 stops28h 20m

Thu 26/1101:30 -

1 stop17h 05m

Deal found 25/9£792

Fri 13/1118:30 -

1 stop28h 10m

Sat 28/1121:10 -

1 stop15h 20m

Deal found 25/9£794

Thu 12/1108:15 -

2 stops34h 05m

Sat 28/1121:10 -

1 stop15h 20m

Deal found 25/9£796

Thu 12/1106:00 -

1 stop16h 20m

Thu 26/1101:30 -

1 stop17h 05m

Deal found 25/9£803

Find flight deals from Heathrow to Porto Alegre

Round-trip from	£734
One-way from	£459
Popular in	July
Cheapest in	April
Average price	£926

TAP AIR PORTUGAL
16/11-1/12
2 total stops
50h 35m total
London to Porto Alegre

Search Deals

14/11-31/12
3 total stops
44h 45m total
London to Porto Alegre

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£199 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£31 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Mon 23/11

18:30-16:45

2 stops25h 15m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£573

Fastest return journey

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Mon 23/11

20:15-12:15

1 stop19h 00m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£601

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Sat 24/10

19:50-08:15

2 stops40h 25m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£716

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Sat 24/10

06:00-22:40

1 stop20h 40m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£723

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 28/10

09:10-20:00

2 stops37h 50m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£737

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 9/12

12:05-14:50

2 stops29h 45m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£739

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Wed 23/12

08:15-19:20

1 stop38h 05m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£836

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Fri 11/12

22:40-10:15

2 stops38h 35m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£879

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Mon 23/11

14:25-12:15

3 stops24h 50m

Porto Alegre Salgado Filho

Wed 31/12

00:00-04:00

Nonstop0h 00m

£911

LondonPorto Alegre

LHR London Heathrow - POA Porto Alegre Salgado Filho

LHRPOA

London Heathrow

Mon 23/11

20:15-10:00

1 stop16h 45m

Porto Alegre Salgado Filho

Fri 27/11

11:30-14:05

2 stops23h 35m

£921

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Showing 1-10 of 20 resultsSorted by cheapest first

Best time to book a flight from Heathrow to Porto Alegre

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

LHR-POA

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 London Heathrow Airport to Porto Alegre

Prices

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Porto Alegre (average of £780). Flying from London Heathrow Airport to Porto Alegre in July is currently the most expensive (average of £1,496). 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.

Reviews of airlines servicing Porto Alegre

Check out reviews from past customers who have flown with LATAM Airlines,Virgin Atlantic, andTAP AIR PORTUGAL from London Heathrow Airport to Porto Alegre 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

1,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Noah,Aug 2026

JFK - GRU

This was fine, the flight crew and food were good.

LATAM Airlines

7.4

Good

1,977 reviews

LATAM Airlines

7.4

Good

1,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Noah,Aug 2026

JFK - GRU

This was fine, the flight crew and food were good.

Virgin Atlantic

7.4

Good

694 reviews

LATAM Airlines

7.4

Good

1,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Noah,Aug 2026

JFK - GRU

This was fine, the flight crew and food were good.

TAP AIR PORTUGAL

7.2

Good

2,386 reviews

LATAM Airlines

7.4

Good

1,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Noah,Aug 2026

JFK - GRU

This was fine, the flight crew and food were good.

Related info for your journey

What airport do you fly into for flights to Porto Alegre from London Heathrow?
Porto Alegre Salgado Filho (POA) is the airport you will fly into if you book a flight from London Heathrow to Porto Alegre. You should not have trouble finding flights to Salgado Filho from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Porto Alegre airport from London Heathrow. It is only a 4.0 mi journey from Salgado Filho (POA) to Porto Alegre’s city center.
How long is the flight from London Heathrow Airport to Porto Alegre?
For as low as £921, LATAM Airlines can have you in Porto Alegre from London Heathrow Airport in 16h 45m. The distance between London Heathrow Airport and Porto Alegre is about 6410 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London Heathrow Airport to Porto Alegre round-trip?
Our cheapest airline available from London Heathrow Airport to Porto Alegre is LATAM Airlines. Our recent data shows that you can find tickets from as low as £761 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Virgin Atlantic, starting at £778 and £1,161 round-trip. You may be able to fly from London Heathrow Airport to Porto Alegre for 28% less than the average price by searching for these airlines.
Can I find deals for flights from Heathrow to Porto Alegre that include hotel bookings?
Yes. In addition to deals on Heathrow to Porto Alegre flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Porto Alegre?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Porto Alegre.
Can I find deals for business class flights from Heathrow to Porto Alegre?
Yes. Cheapflights offers flight deals from Heathrow to Porto Alegre 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 London Heathrow Airport to Porto Alegre?
Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Porto Alegre (average of £780). Flying from London Heathrow Airport to Porto Alegre in July is currently the most expensive (average of £1,496). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Porto Alegre

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Top 3 airlines flying from Heathrow to Porto Alegre

Airline	Cheapest	Average	Flexibility	On-time
LATAM Airlines	Cheapest£761	Average£1,131	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights
TAP AIR PORTUGAL	Cheapest£778	Average£849	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£1,161	Average£1,486	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto Alegre from Heathrow today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Porto Alegre.

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

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

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Cheap flights from London Heathrow Airport to Porto Alegre from £459

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Porto Alegre

Cheapest flights from Heathrow to Porto AlegreExplore the most affordable flight options available from Heathrow to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Explore the most affordable flight options available from Heathrow to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Heathrow to Porto AlegreDiscover carefully curated flight deals from Heathrow to Porto Alegre that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Discover carefully curated flight deals from Heathrow to Porto Alegre that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Heathrow to Porto AlegreDiscover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 29 September 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 29 September 2026 and is based on user searches.

One-way flights from Heathrow to Porto AlegreSearch for one-way flight options from Heathrow to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.

Search for one-way flight options from Heathrow to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.

Find flight deals from Heathrow to Porto Alegre

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

Best time to book a flight from Heathrow to Porto Alegre

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

Cheapflights Insights

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

What’s the top stopover airport for flights from London Heathrow Airport to Porto Alegre?

Sao Paulo (GRU) – chosen by Cheapflights users on 72% of one-stop itineraries from London Heathrow Airport to Porto Alegre on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Porto Alegre?

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £796.

What’s the fastest stopover option from London Heathrow Airport to Porto Alegre?

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 16h 03m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Porto Alegre?

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 2h 59m.

Reviews of airlines servicing Porto Alegre

Related info for your journey

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Porto Alegre by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Brazil

Book a non-stop flight to one of these other cities located in Brazil.

Search flights from Heathrow to Porto Alegre by cabin class

Find flights from Heathrow to Porto Alegre, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Porto Alegre flights

Browse other Heathrow and Porto Alegre flight options. Last updated on 29 September 2026.

Other flights from Heathrow

Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 29 September 2026.

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Other flights to Porto Alegre

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Top 3 airlines flying from Heathrow to Porto Alegre

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Cheapest flights from Heathrow to Porto Alegre
Explore the most affordable flight options available from Heathrow to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Heathrow to Porto Alegre
Discover carefully curated flight deals from Heathrow to Porto Alegre that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Heathrow to Porto Alegre
Discover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 29 September 2026 and is based on user searches.

One-way flights from Heathrow to Porto Alegre
Search for one-way flight options from Heathrow to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.