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$54+ Cheap flights from Porto (OPO) to Heathrow (LHR)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Porto to Heathrow

Cheapest flights from Porto to Heathrow
Explore the most affordable flight options available from Porto to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This Vueling Global deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Wed 9/309:55 am
LHR
-
OPO
1 stop6h 15m
Vueling
Deal found 7/30$155
This Vueling Global deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Tue 9/298:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 7/28$159
This Vueling Global deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 am
OPO
-
LHR
1 stop11h 30m
Vueling
Sat 9/268:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 7/31$160
This Vueling Global deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:55 pm
OPO
-
LHR
1 stop11h 15m
Vueling
Mon 11/308:50 pm
LHR
-
OPO
1 stop11h 20m
Vueling
Deal found 7/30$168
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Wed 9/309:55 am
LHR
-
OPO
1 stop6h 15m
Vueling
Deal found 7/28$170
This Vueling Global deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Mon 9/288:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 7/30$172
This Vueling Global deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:55 pm
OPO
-
LHR
1 stop11h 15m
Vueling
Mon 11/238:50 pm
LHR
-
OPO
1 stop16h 20m
Vueling
Deal found 7/29$174
This Vueling Global deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Sat 9/268:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 7/30$175
This Vueling Global deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Thu 9/178:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 7/29$176

Find flight deals from Porto to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) 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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$155
(Vueling Global)

One-way from

$54
(Vueling Global)

Popular in

July

Cheapest in

February

Average price

$312
Provider with most accurate pricing for Porto-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-London Heathrow flights.
Search Deals
From Porto to London Heathrow
Search Deals
One-way flight from Porto to London Heathrow
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto 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 2,558,603 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Porto to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 12/14

9:10 am-4:20 pm

2 stops7h 10m

London Heathrow

Mon 12/14

8:05 pm-11:15 am

1 stop15h 10m

$272

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 8/21

7:20 pm-7:55 am

1 stop12h 35m

London Heathrow

Mon 8/24

6:40 pm-7:55 am

1 stop13h 15m

$281
Quickest round-trip

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 11/28

12:05 pm-9:25 pm

2 stops9h 20m

London Heathrow

Tue 12/1

6:00 am-11:15 am

1 stop5h 15m

$285

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 8/21

7:20 pm-7:55 am

1 stop12h 35m

London Heathrow

Tue 8/25

8:05 pm-7:55 am

1 stop11h 50m

$335

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 1/1

12:55 pm-9:20 pm

1 stop8h 25m

London Heathrow

Sun 1/3

11:05 am-12:05 pm

1 stop25h 00m

$405

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 10/3

11:35 am-8:30 pm

2 stops32h 55m

London Heathrow

Mon 10/5

2:40 pm-3:25 pm

2 stops24h 45m

$1,456

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 10/3

12:25 pm-5:15 pm

1 stop4h 50m

London Heathrow

Mon 10/5

9:40 pm-4:00 pm

2 stops18h 20m

$1,464

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 10/6

5:00 am-8:30 pm

2 stops39h 30m

London Heathrow

Tue 10/13

10:10 pm-3:25 pm

2 stops41h 15m

$1,489

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 10/9

11:35 am-12:40 pm

2 stops25h 05m

London Heathrow

Mon 10/12

2:40 pm-3:25 pm

2 stops24h 45m

$1,496

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 9/10

5:00 am-8:30 pm

2 stops39h 30m

London Heathrow

Tue 9/15

10:10 pm-3:25 pm

2 stops41h 15m

$1,598

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 22 resultsSorted by cheapest first
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2
3

Compare providers for flights from Porto to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Heathrow in August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Porto with our price prediction graph.
Estimated round-trip 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 to London Heathrow Airport

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

Currently, February is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $130). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of $397). 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.

How much does it cost to fly round-trip from Porto to London Heathrow Airport?

Airfare is below average for this route at the moment.

Porto to London Heathrow Airport flights typically cost between $266 and $405 in September.
The cheapest round-trip price found within the last 5 days was $155 on Vueling (Sep 15-Sep 30).

Related info for your journey

Find useful and relevant information for your journey from Porto 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 to London Heathrow?

    Porto (OPO) is the airport you will fly out of if you book a flight from Porto to London Heathrow. You should not have trouble finding flights to London Heathrow from Porto; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Porto airport to London Heathrow. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

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

    Departing from Porto to London Heathrow Airport will take you 6h 55m. The distance between Porto and London Heathrow Airport is about 806 mi. This flight may include one or multiple stops.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Heathrow.

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

    Yes. Cheapflights offers flight deals from Porto 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 to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $130). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of $397). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
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Winchester
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Gatwick
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Harrow
Eastleigh
Southend-on-Sea
Watford
Northampton
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

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