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Cheap flights from London Heathrow Airport to Porto Alegre from £411

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — POA
26 Feb — 5 Mar1
1 adult

The best prices from London Heathrow to Porto Alegre Salgado Filho are usually found in September or February, booked 75 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Heathrow to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Porto Alegre (POA). 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 21 February 2025.

Round-trip from

£889

One-way from

£558

Popular in

December

Cheapest in

September

Average price

£833
LATAM Airlines
  • LATAM Airlines
  • 25/2-4/3
  • 4 total stops
  • 89h 00m total
  • London to Porto Alegre
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LATAM Airlines
  • LATAM Airlines
  • 1/3
  • 2 total stops
  • 30h 10m total
  • London to Porto Alegre
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£62 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£27 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Find flight deals from Heathrow to Porto Alegre

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 21 February 2025.

Mon 26/508:40LHR - POA
2 stops19h 50mKLM
Mon 9/618:35POA - LHR
2 stops19h 00mKLM
Deal found 20/2£739
Mon 26/521:20LHR - POA
1 stop18h 10mLATAM Airlines
Mon 9/620:00POA - LHR
1 stop15h 05mLATAM Airlines
Deal found 20/2£772
Tue 25/215:15LHR - POA
2 stops43h 35mMultiple Airlines
Tue 4/306:05POA - LHR
1 stop29h 00mMultiple Airlines
Deal found 20/2£932
Sat 12/406:00LHR - POA
1 stop20h 35mTAP AIR PORTUGAL
Sat 19/401:40POA - LHR
1 stop31h 05mTAP AIR PORTUGAL
Deal found 20/2£972
Mon 24/217:10LHR - POA
2 stops21h 30mSWISS
Wed 5/312:30POA - LHR
2 stops26h 20mSWISS
Deal found 20/2£980
Wed 26/206:35LHR - POA
2 stops20h 30mLufthansa
Mon 3/317:30POA - LHR
2 stops24h 30mLufthansa
Deal found 20/2£1,043
Sat 22/219:35LHR - POA
2 stops31h 15mAir France
Mon 3/319:30POA - LHR
2 stops18h 05mAir France
Deal found 20/2£1,058
Sat 12/414:10LHR - POA
2 stops31h 45mUnited Airlines
Sun 20/418:35POA - LHR
2 stops31h 45mUnited Airlines
Deal found 20/2£1,137
Tue 25/206:10LHR - POA
2 stops42h 55mIberia
Sun 2/312:30POA - LHR
2 stops23h 00mIberia
Deal found 20/2£1,206

Find flights from Heathrow to Porto Alegre within your budget

Customise your flight search to find flights from Heathrow to Porto Alegre 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 21 February 2025.

Fly from

Heathrow

Fly to

Porto Alegre

Route

Depart

Return

Price

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 26/5

08:40-00:30

2 stops19h 50m

Porto Alegre Salgado Filho

Mon 9/6

18:35-17:35

2 stops19h 00m

£739

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 26/5

21:20-11:30

1 stop18h 10m

Porto Alegre Salgado Filho

Mon 9/6

20:00-15:05

1 stop15h 05m

£772

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 12/4

06:00-22:35

1 stop20h 35m

Porto Alegre Salgado Filho

Sat 19/4

01:40-12:45

1 stop31h 05m

£972

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 12/4

14:10-17:55

2 stops31h 45m

Porto Alegre Salgado Filho

Sun 20/4

18:35-06:20

2 stops31h 45m

£1,137

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 12/4

06:00-23:40

2 stops21h 40m

Porto Alegre Salgado Filho

Sat 19/4

01:40-22:00

1 stop16h 20m

£1,364

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Mon 7/4

20:50-23:15

3 stops30h 25m

£411

LondonPorto Alegre

LHR - POA

LHRPOA

London Heathrow

Sat 1/3

20:15-23:25

2 stops30h 10m

£558

Flights are sorted by cheapest return flights first.

Deals found on 21/2

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.

Travel insights for flights from Heathrow to Porto Alegre

Get recent, data-driven insights about flights from Heathrow to Porto Alegre including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Porto Alegre. Price data was last updated on 14 February 2025.

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 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Find hourly flight availability from Heathrow to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 31% on flights from London Heathrow Airport to Porto Alegre by exploring options for tickets in the morning.

Rainfall in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.

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.

Temperature in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated 21 February 2025.
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

LATAM Airlines
7.5
Good
1,794 reviews
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

SWISS
7.5
Good
1,568 reviews
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

Air France
7.4
Good
1,449 reviews
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

United Airlines
7.4
Good
8,760 reviews
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

TAP AIR PORTUGAL
7.1
Good
1,847 reviews
LATAM Airlines
7.5
Good
1,794 reviews
Check prices

Crew

8.1

Boarding

7.6

Entertainment

7.0

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

GRU - ATL

Fantastic! Everything about my flight from Sao Paulo to Atlanta went well. The gate area was excellent, roomy and clean. Communication was clear and timely. The boarding process was simple and efficient. The plane was excellent as was the crew. Great job!

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?

    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.

  • 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 £889 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and SWISS, starting at £972 and £980 round-trip. You may be able to fly from London Heathrow Airport to Porto Alegre for 12% 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.

See more FAQs

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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.
Gatwick to Porto Alegre flights

Top 3 airlines flying from Heathrow to Porto Alegre

Discover the top 3 airlines that operate flights from Heathrow to Porto Alegre. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£583Average£901FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapest£686Average£809FlexibilityNo cancel feeOn-time77%
Search Air France flights
LATAM AirlinesCheapest£731Average£971FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

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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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