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
Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Heathrow (LHR). 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 4 July 2025.
Round-trip from | £714 |
---|---|
One-way from | £366 |
Popular in | September |
Cheapest in | February |
Average price | £865 |
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
Customise your flight search to find flights from Porto Alegre to Heathrow 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 4 July 2025.
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
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
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
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
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
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
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
Porto AlegreLondon
POA - LHR
POALHR
Porto Alegre Salgado Filho
Sat 9/8
11:20-10:30
2 stops19h 10m
Porto AlegreLondon
POA - LHR
POALHR
Porto Alegre Salgado Filho
Sun 20/7
18:50-15:05
1 stop16h 15m
Porto AlegreLondon
POA - LHR
POALHR
Porto Alegre Salgado Filho
Sat 19/7
01:40-10:20
1 stop28h 40m
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.
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?
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.
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
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 4 July 2025.
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.
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Food
Entertainment
Comfort
Boarding
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
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.
Travelling to a place near Porto Alegre?
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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
Discover the top airline that operate flights from Porto Alegre to Heathrow. 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 4 July 2025.
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?
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.