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

Sao Paulo (GRU) – chosen by Cheapflights users on 74% 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?

Sao Paulo (GRU) is the most affordable one-stop option, with an average return flight price of £880.

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 51m.

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 18m.

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

For as low as £893, Lufthansa can have you in Porto Alegre from London Heathrow Airport in 20h 50m. 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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £638 on this airline. Additional options worth looking into are Air France and LATAM Airlines, starting at £651 and £712 round-trip. You may be able to fly from London Heathrow Airport to Porto Alegre for 35% 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 Air France when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Porto Alegre.

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.

£474+ Cheap Flights from London Heathrow Airport to Porto Alegre

Cheapflights Tip: The best prices from London Heathrow to Porto Alegre Salgado Filho are usually found in March or February, booked 13 days in advance, depart on a Monday or Thursday and return on a Monday

Find flight deals from Heathrow to Porto Alegre

Enter your travel dates to find the best prices.

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 15 October 2025.

Tue 25/1106:20LHR - POA

2 stops28h 55mAir France

Tue 2/1206:00POA - LHR

2 stops22h 55mAir France

Deal found 13/10£671

Tue 25/1106:20LHR - POA

2 stops28h 55mMultiple Airlines

Wed 3/1213:40POA - LHR

2 stops21h 10mMultiple Airlines

Deal found 13/10£714

Wed 26/1118:30LHR - POA

1 stop27h 50mTAP AIR PORTUGAL

Tue 2/1221:10POA - LHR

1 stop21h 25mTAP AIR PORTUGAL

Deal found 13/10£724

Tue 25/1106:20LHR - POA

2 stops28h 55mAir France

Mon 1/1213:40POA - LHR

2 stops23h 55mAir France

Deal found 13/10£726

Mon 24/1106:30LHR - POA

2 stops20h 00mMultiple Airlines

Wed 3/1219:20POA - LHR

2 stops18h 15mMultiple Airlines

Deal found 13/10£730

Tue 25/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Tue 2/1221:10POA - LHR

1 stop21h 25mTAP AIR PORTUGAL

Deal found 13/10£739

Mon 24/1106:30LHR - POA

2 stops20h 00mKLM

Tue 2/1211:40POA - LHR

2 stops18h 20mKLM

Deal found 13/10£752

Wed 26/1106:30LHR - POA

2 stops20h 20mMultiple Airlines

Wed 3/1219:20POA - LHR

2 stops20h 00mMultiple Airlines

Deal found 13/10£763

Tue 25/1120:15LHR - POA

1 stop23h 50mLATAM Airlines

Mon 1/1204:45POA - LHR

1 stop30h 20mLATAM Airlines

Deal found 13/10£784

Wed 26/1119:25LHR - POA

2 stops18h 30mMultiple Airlines

Tue 2/1211:40POA - LHR

2 stops17h 00mMultiple Airlines

Deal found 13/10£787

Tue 25/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Thu 4/1200:45POA - LHR

1 stop31h 40mTAP AIR PORTUGAL

Deal found 13/10£793

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 15 October 2025.

Thu 19/320:15LHR - POA

2 stops31h 10mLufthansa

Mon 23/312:30POA - LHR

2 stops17h 15mLufthansa

Deal found 14/10£822

Thu 5/211:30LHR - POA

2 stops26h 25mMultiple Airlines

Thu 12/211:40POA - LHR

2 stops24h 05mMultiple Airlines

Deal found 14/10£838

Thu 19/320:15LHR - POA

1 stop20h 50mLATAM Airlines

Mon 23/317:55POA - LHR

2 stops19h 40mLATAM Airlines

Deal found 14/10£893

Wed 26/1112:05LHR - POA

2 stops26h 30mSWISS

Mon 1/1214:55POA - LHR

2 stops23h 55mSWISS

Deal found 13/10£953

Tue 25/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Sat 29/1121:10POA - LHR

1 stop15h 20mTAP AIR PORTUGAL

Deal found 13/10£959

Fri 23/112:00LHR - POA

2 stops28h 40mUnited Airlines

Wed 18/215:25POA - LHR

2 stops37h 05mUnited Airlines

Deal found 13/10£1,055

Mon 26/106:35LHR - POA

2 stops20h 20mMultiple Airlines

Wed 18/214:55POA - LHR

2 stops22h 25mMultiple Airlines

Deal found 13/10£1,037

Sat 24/106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Sat 21/221:10POA - LHR

1 stop17h 20mTAP AIR PORTUGAL

Deal found 13/10£1,144

Mon 26/120:05LHR - POA

2 stops42h 30mSWISS

Wed 18/214:55POA - LHR

3 stops24h 45mSWISS

Deal found 13/10£1,167

Mon 24/1120:05LHR - POA

2 stops42h 30mSWISS

Tue 2/1214:55POA - LHR

2 stops19h 05mSWISS

Deal found 13/10£1,210

Sun 25/114:25LHR - POA

3 stops24h 10mSWISS

Tue 17/214:55POA - LHR

3 stops22h 45mSWISS

Deal found 13/10£1,214

Last-minute flights from Heathrow to Porto Alegre
Discover last-minute flight deals from Heathrow to Porto Alegre. Data last updated 15 October 2025 and is based on user searches.

Mon 24/1106:30LHR - POA

2 stops20h 00mMultiple Airlines

Wed 3/1219:20POA - LHR

2 stops18h 15mMultiple Airlines

Deal found 13/10£730

Mon 24/1106:30LHR - POA

2 stops20h 00mKLM

Tue 2/1211:40POA - LHR

2 stops18h 20mKLM

Deal found 13/10£752

Tue 25/1106:20LHR - POA

2 stops28h 55mMultiple Airlines

Tue 2/1213:40POA - LHR

2 stops21h 10mMultiple Airlines

Deal found 13/10£671

Tue 25/1106:20LHR - POA

2 stops28h 55mMultiple Airlines

Wed 3/1213:40POA - LHR

2 stops21h 10mMultiple Airlines

Deal found 13/10£714

Tue 25/1106:20LHR - POA

2 stops28h 55mAir France

Mon 1/1213:40POA - LHR

2 stops23h 55mAir France

Deal found 13/10£726

Tue 25/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Tue 2/1221:10POA - LHR

1 stop21h 25mTAP AIR PORTUGAL

Deal found 13/10£739

Tue 25/1120:15LHR - POA

1 stop23h 50mLATAM Airlines

Mon 1/1204:45POA - LHR

1 stop30h 20mLATAM Airlines

Deal found 13/10£784

Tue 25/1106:00LHR - POA

1 stop16h 40mTAP AIR PORTUGAL

Thu 4/1200:45POA - LHR

1 stop31h 40mTAP AIR PORTUGAL

Deal found 13/10£793

Wed 26/1118:30LHR - POA

1 stop27h 50mTAP AIR PORTUGAL

Tue 2/1221:10POA - LHR

1 stop21h 25mTAP AIR PORTUGAL

Deal found 13/10£724

Wed 26/1106:30LHR - POA

2 stops20h 20mMultiple Airlines

Wed 3/1219:20POA - LHR

2 stops20h 00mMultiple Airlines

Deal found 13/10£763

Wed 26/1119:25LHR - POA

2 stops18h 30mMultiple Airlines

Tue 2/1211:40POA - LHR

2 stops17h 00mMultiple Airlines

Deal found 13/10£787

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 15 October 2025.

Wed 12/1115:15LHR - POA

3 stops44h 50mMultiple Airlines

Deal found 13/10£474

Sat 11/420:05LHR - POA

2 stops41h 15mSWISS

Deal found 14/10£509

Thu 30/1006:00LHR - POA

3 stops45h 20mMultiple Airlines

Deal found 13/10£564

Wed 12/1118:30LHR - POA

1 stop27h 50mTAP AIR PORTUGAL

Deal found 13/10£568

Sat 11/421:20LHR - POA

1 stop16h 25mLATAM Airlines

Deal found 14/10£578

Thu 30/1020:15LHR - POA

1 stop16h 00mLATAM Airlines

Deal found 13/10£730

Thu 23/1006:50LHR - POA

3 stops31h 35mMultiple Airlines

Deal found 13/10£736

Thu 23/1021:20LHR - POA

1 stop23h 40mLATAM Airlines

Deal found 13/10£810

Cheap flight deals from Heathrow to Porto Alegre

Round-trip from	£671
One-way from	£474
Popular in	July
Cheapest in	March
Average price	£1,007

Air France
25/11-2/12
4 total stops
51h 50m total
London to Porto Alegre

Search Deals

12/11
3 total stops
44h 50m total
London to Porto Alegre

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

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

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 19/3

20:15-00:25

2 stops31h 10m

Porto Alegre Salgado Filho

Mon 23/3

12:30-08:45

2 stops17h 15m

£822

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 5/2

11:30-10:55

2 stops26h 25m

Porto Alegre Salgado Filho

Thu 12/2

11:40-14:45

2 stops24h 05m

£838

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Thu 19/3

20:15-14:05

1 stop20h 50m

Porto Alegre Salgado Filho

Mon 23/3

17:55-16:35

2 stops19h 40m

£893

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Wed 26/11

12:05-11:35

2 stops26h 30m

Porto Alegre Salgado Filho

Mon 1/12

14:55-17:50

2 stops23h 55m

£953

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Tue 25/11

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 29/11

21:10-15:30

1 stop15h 20m

£959

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 26/1

06:35-23:55

2 stops20h 20m

Porto Alegre Salgado Filho

Wed 18/2

14:55-16:20

2 stops22h 25m

£1,037

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Fri 23/1

12:00-13:40

2 stops28h 40m

Porto Alegre Salgado Filho

Wed 18/2

15:25-07:30

2 stops37h 05m

£1,055

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 24/1

06:00-19:40

1 stop16h 40m

Porto Alegre Salgado Filho

Sat 21/2

21:10-17:30

1 stop17h 20m

£1,144

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 26/1

20:05-11:35

2 stops42h 30m

Porto Alegre Salgado Filho

Wed 18/2

14:55-18:40

3 stops24h 45m

£1,167

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 24/11

20:05-11:35

2 stops42h 30m

Porto Alegre Salgado Filho

Tue 2/12

14:55-13:00

2 stops19h 05m

£1,210

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 19 results

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.

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

How far ahead should I book a flight from London Heathrow Airport to Porto Alegre?

The price you pay for your flight from London Heathrow Airport to Porto Alegre may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £596). Flying from London Heathrow Airport to Porto Alegre in August is currently the most expensive (average of £926). 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.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 42% on flights from London Heathrow Airport to Porto Alegre by exploring options for tickets at midday.

Reviews of airlines servicing Porto Alegre

Check out reviews from past customers who have flown with LATAM Airlines, Air France, 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

7.5

Good

1,866 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

LATAM Airlines

7.5

Good

1,866 reviews

LATAM Airlines

7.5

Good

1,866 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

Air France

7.4

Good

1,475 reviews

LATAM Airlines

7.5

Good

1,866 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

TAP AIR PORTUGAL

7.1

Good

2,015 reviews

LATAM Airlines

7.5

Good

1,866 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

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 £893, Lufthansa can have you in Porto Alegre from London Heathrow Airport in 20h 50m. 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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £638 on this airline. Additional options worth looking into are Air France and LATAM Airlines, starting at £651 and £712 round-trip. You may be able to fly from London Heathrow Airport to Porto Alegre for 35% 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 £596). Flying from London Heathrow Airport to Porto Alegre in August is currently the most expensive (average of £926). 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

Alternative routes for Heathrow to Porto Alegre

Gatwick to Porto Alegre flights

Top 3 airlines flying from Heathrow to Porto Alegre

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£638	Average£933	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air France	Cheapest£651	Average£760	FlexibilityNo cancel fee	On-time77%	Search Air France flights
LATAM Airlines	Cheapest£712	Average£987	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights

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

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.

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

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Cheap flights from London Heathrow Airport to Porto Alegre from £474

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Porto Alegre Salgado Filho are usually found in March or February, booked 13 days in advance, depart on a Monday or Thursday and return on a Monday

Find 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 15 October 2025.

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 15 October 2025.

Cheap 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

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

How far ahead should I book a flight from London Heathrow Airport to Porto Alegre?

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

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

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

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

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

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

Reviews of airlines servicing Porto Alegre

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Porto Alegre. 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 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.

Top 3 airlines flying from Heathrow to Porto Alegre

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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?

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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 15 October 2025.