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 £728. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from £738, and LATAM Airlines, from £762. GOL is 9% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Porto Alegre to London Heathrow Airport one-way?

To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at £410. TAP AIR PORTUGAL flights start at £476 while deals on GOL start at £746 one-way.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest month to fly from Porto Alegre to London Heathrow Airport?

February can be a great time to fly to London Heathrow Airport from Porto Alegre with a flight ticket averaging about £774. Cheapflights users have found deals in the month of February for as cheap as £532. The most expensive prices can be found in the month of December.

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 1 airline.

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.

£366+ Flights from Porto Alegre to London Heathrow Airport

Q: How far in advance should I book a flight from Porto Alegre to London Heathrow Airport?

Find a great deal and save up to 50% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Porto Alegre to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at £607.

Cheap flight deals from Porto Alegre to Heathrow

Round-trip from	£714
One-way from	£366
Popular in	September
Cheapest in	February
Average price	£865

17/8-6/9
4 total stops
55h 55m total
Porto Alegre to London

Search Deals

9/8
2 total stops
19h 10m total
Porto Alegre to London

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£52 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Porto Alegre to Heathrow

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 4 July 2025.

Sun 17/813:35POA - LHR

2 stops20h 10mMultiple Airlines

Sat 6/908:40LHR - POA

2 stops35h 45mMultiple Airlines

Deal found 2/7£714

Sat 1/1110:40POA - LHR

2 stops20h 50mGOL

Sat 15/1109:00LHR - POA

2 stops27h 45mGOL

Deal found 3/7£728

Tue 21/1000:15POA - LHR

1 stop18h 40mTAP AIR PORTUGAL

Mon 3/1118:30LHR - POA

1 stop28h 10mTAP AIR PORTUGAL

Deal found 3/7£738

Thu 20/1118:20POA - LHR

1 stop16h 45mLATAM Airlines

Sun 30/1120:15LHR - POA

1 stop18h 20mLATAM Airlines

Deal found 3/7£762

Wed 16/710:05POA - LHR

2 stops20h 35mLufthansa

Wed 25/207:40LHR - POA

2 stops28h 40mLufthansa

Deal found 2/7£799

Tue 19/818:35POA - LHR

2 stops19h 00mKLM

Wed 10/908:40LHR - POA

2 stops19h 50mKLM

Deal found 2/7£804

Best flights from Porto Alegre to Heathrow
Discover carefully curated flight deals from Porto Alegre to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 July 2025.

Sun 17/813:35POA - LHR

2 stops20h 10mMultiple Airlines

Sat 6/908:40LHR - POA

2 stops35h 45mMultiple Airlines

Deal found 2/7£714

Sat 1/1110:40POA - LHR

2 stops20h 50mGOL

Sat 15/1109:00LHR - POA

2 stops27h 45mGOL

Deal found 3/7£728

Tue 21/1000:15POA - LHR

1 stop18h 40mTAP AIR PORTUGAL

Mon 3/1118:30LHR - POA

1 stop28h 10mTAP AIR PORTUGAL

Deal found 3/7£738

Thu 20/1118:20POA - LHR

1 stop16h 45mLATAM Airlines

Sun 30/1120:15LHR - POA

1 stop18h 20mLATAM Airlines

Deal found 3/7£762

Wed 16/710:05POA - LHR

2 stops20h 35mLufthansa

Wed 25/207:40LHR - POA

2 stops28h 40mLufthansa

Deal found 2/7£799

Tue 19/818:35POA - LHR

2 stops19h 00mKLM

Wed 10/908:40LHR - POA

2 stops19h 50mKLM

Deal found 2/7£804

Tue 19/814:35POA - LHR

2 stops21h 50mSWISS

Wed 10/920:05LHR - POA

2 stops41h 15mSWISS

Deal found 3/7£840

Last-minute flights from Porto Alegre to Heathrow
Discover last-minute flight deals from Porto Alegre to Heathrow. Data last updated 4 July 2025 and is based on user searches.

Thu 10/717:35POA - LHR

2 stops21h 15mTAP AIR PORTUGAL

Mon 21/718:45LHR - POA

1 stop31h 00mTAP AIR PORTUGAL

Deal found 3/7£1,056

Thu 10/705:20POA - LHR

2 stops29h 45mLATAM Airlines

Mon 21/721:20LHR - POA

2 stops30h 10mLATAM Airlines

Deal found 3/7£1,240

Thu 10/720:00POA - LHR

2 stops20h 40mMultiple Airlines

Mon 21/716:30LHR - POA

2 stops25h 20mMultiple Airlines

Deal found 2/7£1,334

Sun 13/718:35POA - LHR

2 stops46h 50mGOL

Sat 2/808:40LHR - POA

2 stops35h 45mGOL

Deal found 2/7£1,324

Tue 15/700:15POA - LHR

1 stop30h 05mTAP AIR PORTUGAL

Wed 25/218:30LHR - POA

1 stop28h 10mTAP AIR PORTUGAL

Deal found 2/7£870

Wed 16/710:05POA - LHR

2 stops20h 35mLufthansa

Wed 25/207:40LHR - POA

2 stops28h 40mLufthansa

Deal found 2/7£799

Fri 8/818:50POA - LHR

1 stop16h 15mLATAM Airlines

Fri 29/821:20LHR - POA

1 stop16h 00mLATAM Airlines

Deal found 2/7£770

Sun 17/813:35POA - LHR

2 stops20h 10mMultiple Airlines

Sat 6/908:40LHR - POA

2 stops35h 45mMultiple Airlines

Deal found 2/7£714

Tue 19/818:35POA - LHR

2 stops19h 00mKLM

Wed 10/908:40LHR - POA

2 stops19h 50mKLM

Deal found 2/7£804

Tue 19/814:35POA - LHR

2 stops21h 50mSWISS

Wed 10/920:05LHR - POA

2 stops41h 15mSWISS

Deal found 3/7£840

Wed 20/811:05POA - LHR

2 stops22h 40mGOL

Wed 10/908:40LHR - POA

2 stops20h 15mGOL

Deal found 3/7£750

One-way flights from Porto Alegre to Heathrow
Search for one-way flight options from Porto Alegre to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 July 2025.

Sat 9/811:20POA - LHR

2 stops19h 10mMultiple Airlines

Deal found 3/7£366

Sun 20/718:50POA - LHR

1 stop16h 15mLATAM Airlines

Deal found 3/7£410

Sat 19/701:40POA - LHR

1 stop28h 40mTAP AIR PORTUGAL

Deal found 3/7£476

Fri 15/818:35POA - LHR

3 stops41h 40mGOL

Deal found 3/7£746

Sat 9/811:30POA - LHR

1 stop15h 20mBritish Airways

Deal found 3/7£782

Fri 1/812:35POA - LHR

2 stops20h 25mSWISS

Deal found 3/7£797

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

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 17/8

13:35-13:45

2 stops20h 10m

London Heathrow

Sat 6/9

08:40-16:25

2 stops35h 45m

£714

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 1/11

10:40-10:30

2 stops20h 50m

London Heathrow

Sat 15/11

09:00-09:45

2 stops27h 45m

£728

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 21/10

00:15-22:55

1 stop18h 40m

London Heathrow

Mon 3/11

18:30-19:40

1 stop28h 10m

£738

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Thu 20/11

18:20-14:05

1 stop16h 45m

London Heathrow

Sun 30/11

20:15-11:35

1 stop18h 20m

£762

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Wed 16/7

10:05-10:40

2 stops20h 35m

London Heathrow

Wed 25/2

07:40-09:20

2 stops28h 40m

£799

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 19/8

18:35-17:35

2 stops19h 00m

London Heathrow

Wed 10/9

08:40-00:30

2 stops19h 50m

£804

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Tue 19/8

14:35-16:25

2 stops21h 50m

London Heathrow

Wed 10/9

20:05-09:20

2 stops41h 15m

£840

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 9/8

11:20-10:30

2 stops19h 10m

£366

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sun 20/7

18:50-15:05

1 stop16h 15m

£410

Porto AlegreLondon

POA - LHR

POALHR

Porto Alegre Salgado Filho

Sat 19/7

01:40-10:20

1 stop28h 40m

£476

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 13 results

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

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

The best time to book flights from Porto Alegre to London Heathrow Airport is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Porto Alegre to London Heathrow Airport (average of £112). Flying from Porto Alegre to London Heathrow Airport in August is currently the most expensive (average of £164). 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 POA to LHR?

When flying from Porto Alegre to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with KLM, LATAM Airlines, andSWISS 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.

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,363 reviews

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

LATAM Airlines

7.5

Good

1,802 reviews

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

SWISS

7.5

Good

1,654 reviews

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

GOL

7.3

Good

1,086 reviews

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

TAP AIR PORTUGAL

7.1

Good

1,912 reviews

KLM

7.8

Good

1,363 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 1 airline.
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 £728. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from £738, and LATAM Airlines, from £762. GOL is 9% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Porto Alegre to London Heathrow Airport one-way?
To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at £410. TAP AIR PORTUGAL flights start at £476 while deals on GOL start at £746 one-way.
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, January is the cheapest month in which you can book a flight from Porto Alegre to London Heathrow Airport (average of £112). Flying from Porto Alegre to London Heathrow Airport in August is currently the most expensive (average of £164). 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

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Deal

Northampton

Gatwick

Luton

Slough

Wembley

Crawley

Eastbourne

Ilford

Hayes

Folkestone

Southend-on-Sea

Watford

Ipswich

Winchester

Swindon

Maidstone

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Porto Alegre to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
LATAM Airlines	Cheapest£594	Average£855	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights

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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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Cheap flights from Porto Alegre to London Heathrow Airport from £366

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Porto Alegre to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Porto Alegre to Heathrow

Cheapest flights from Porto Alegre to HeathrowExplore 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 4 July 2025.

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 4 July 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Porto Alegre to Heathrow. Price data was last updated on 27 June 2025.

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

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

Find hourly flight availability from Porto Alegre to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

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

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with KLM, LATAM Airlines, andSWISS 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.

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?

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

What are the cheapest airlines to fly from Porto Alegre to London Heathrow Airport one-way?

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

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

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

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

Travelling to a place near Porto Alegre?

Browse thousands of different options on Cheapflights for your next trip

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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.

Top airline flying from Porto Alegre to Heathrow

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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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 4 July 2025.