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

Airfare is typical for this route at the moment. London Heathrow Airport to Porto Alegre flights typically cost between £755 and £1,405 in November. The cheapest return price found within the last 5 days was £761 on Multiple Airlines (15 Nov–28 Nov).

Question 1

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

Accepted Answer

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £786.

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 3h 01m.

Question 4

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

Accepted Answer

Airfare is typical for this route at the moment.London Heathrow Airport to Porto Alegre flights typically cost between £755 and £1,405 in November.
The cheapest return price found within the last 5 days was £761 on Multiple Airlines (15 Nov–28 Nov).

Question 5

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

Accepted Answer

Sao Paulo (GRU) – chosen by Cheapflights users on 71% of one-stop itineraries from London Heathrow Airport to Porto Alegre on Cheapflights.

Question 6

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

Accepted Answer

For as low as £932, LATAM Airlines can have you in Porto Alegre from London Heathrow Airport in 23h 50m. The distance between London Heathrow Airport and Porto Alegre is about 6410 mi.

Question 7

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

Accepted Answer

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 £750 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Virgin Atlantic, starting at £769 and £1,148 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.

Question 8

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

Accepted Answer

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Porto Alegre (average of £771). Flying from London Heathrow Airport to Porto Alegre in July is currently the most expensive (average of £1,479). 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.

Question 9

E

Accepted Answer

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.

Question 10

E

Accepted Answer

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).

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

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.

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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.

Question 17

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

Accepted Answer

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!

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

Of course! You can now track prices for flights from Heathrow to Porto Alegre and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	£761
One-way from	£439
Popular in	July
Cheapest in	April
Average price	£870

Airline	Cheapest	Average	Flexibility	On-time
LATAM Airlines	Cheapest£750	Average£1,106	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights
TAP AIR PORTUGAL	Cheapest£769	Average£830	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£1,148	Average£1,429	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Cheap flights from London Heathrow Airport to Porto Alegre from £439

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. 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 3 November 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 3 November 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 3 November 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 3 November 2026.

Last-minute flights from Heathrow to Porto AlegreDiscover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 3 November 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 3 November 2026.

Search for one-way flight options from Heathrow to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Find flight deals from Heathrow to Porto Alegre

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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?

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

Airfare is typical for this route at the moment.

London Heathrow Airport to Porto Alegre flights typically cost between £755 and £1,405 in November.The cheapest return price found within the last 5 days was £761 on Multiple Airlines (15 Nov–28 Nov).

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

Sao Paulo (GRU) – chosen by Cheapflights users on 71% 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 £786.

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 3h 01m.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 November 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 3 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Porto Alegre

Explore flights to Porto Alegre departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 November 2026.

Top 3 airlines flying from Heathrow to Porto Alegre

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 3 November 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 3 November 2026.

Last-minute flights from Heathrow to Porto Alegre
Discover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 3 November 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 3 November 2026.

London Heathrow Airport to Porto Alegre flights typically cost between £755 and £1,405 in November.
The cheapest return price found within the last 5 days was £761 on Multiple Airlines (15 Nov–28 Nov).