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$63+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap 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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$169
(Vueling Global)

One-way from

$63
(Iberia)

Popular in

July

Cheapest in

February

Average price

$236
Provider with most accurate pricing for Porto-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Porto-London Heathrow flights.
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From Porto to London Heathrow
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One-way flight from Porto to London Heathrow
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Highest demand for flights based on searches. 23% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/238:45 amOPO - LHR
1 stop9h 15mMultiple Airlines
Thu 1/13:30 pmLHR - OPO
1 stop4h 45mMultiple Airlines
Deal found 11/2$182
This KLM deal was found by Cheapflights users on 11/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amOPO - LHR
1 stop7h 50mKLM
Wed 12/313:45 pmLHR - OPO
1 stop6h 40mKLM
Deal found 11/3$200
This KLM deal was found by Cheapflights users on 11/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:15 amOPO - LHR
1 stop4h 50mKLM
Tue 1/610:00 amLHR - OPO
1 stop5h 25mKLM
Deal found 11/2$201
This Orbitz deal was found by Cheapflights users on 11/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:20 amOPO - LHR
1 stop6h 35mMultiple Airlines
Thu 12/114:30 pmLHR - OPO
1 stop5h 30mMultiple Airlines
Deal found 11/2$212
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/228:45 amOPO - LHR
1 stop9h 15mMultiple Airlines
Fri 1/21:40 pmLHR - OPO
1 stop5h 20mMultiple Airlines
Deal found 11/2$216
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/239:05 pmOPO - LHR
1 stop20h 10mMultiple Airlines
Fri 1/21:40 pmLHR - OPO
1 stop5h 20mMultiple Airlines
Deal found 11/2$228
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 11/2012:55 pmOPO - LHR
1 stop8h 25mMultiple Airlines
Sun 11/236:00 amLHR - OPO
1 stop12h 35mMultiple Airlines
Deal found 11/2$234
This Orbitz deal was found by Cheapflights users on 11/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:05 pmOPO - LHR
1 stop5h 45mMultiple Airlines
Mon 12/86:00 amLHR - OPO
1 stop7h 00mMultiple Airlines
Deal found 11/3$235
This Travelocity deal was found by Cheapflights users on 11/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:40 pmOPO - LHR
1 stop24h 35mMultiple Airlines
Tue 12/98:15 amLHR - OPO
1 stop10h 45mMultiple Airlines
Deal found 11/4$240
This Travelocity deal was found by Cheapflights users on 11/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:40 pmOPO - LHR
1 stop20h 35mMultiple Airlines
Mon 12/86:00 amLHR - OPO
1 stop12h 05mMultiple Airlines
Deal found 11/2$244
This Brussels Airlines deal was found by Cheapflights users on 11/2. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2212:55 pmOPO - LHR
1 stop8h 25mBrussels Airlines
Wed 11/266:50 amLHR - OPO
1 stop5h 15mBrussels Airlines
Deal found 11/2$246

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 November 4, 2025.
Use the filters below to find and compare flights from Porto to London Heathrow Airport that are best for you.

Fly from

Porto

Fly to

Heathrow

Route

Depart

Return

Price

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 12/17

6:00 am-1:50 pm

1 stop7h 50m

London Heathrow

Wed 12/31

3:45 pm-10:25 pm

1 stop6h 40m

$200

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 1/16

12:00 pm-5:30 pm

1 stop5h 30m

London Heathrow

Sun 1/18

4:30 pm-10:00 pm

1 stop5h 30m

$214

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 3/14

6:00 am-10:20 pm

1 stop16h 20m

London Heathrow

Sun 3/15

8:15 pm-12:50 pm

1 stop16h 35m

$225

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 2/12

12:05 pm-5:30 pm

1 stop5h 25m

London Heathrow

Sun 2/15

8:15 am-3:00 pm

1 stop6h 45m

$237

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 4/16

7:00 am-12:45 pm

1 stop5h 45m

London Heathrow

Fri 4/17

6:45 pm-12:40 am

1 stop5h 55m

$238

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 11/28

12:55 pm-9:20 pm

1 stop8h 25m

London Heathrow

Tue 12/2

6:50 am-12:05 pm

1 stop5h 15m

$246

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 12/4

11:15 am-5:00 pm

1 stop5h 45m

London Heathrow

Thu 12/11

10:00 am-3:25 pm

1 stop5h 25m

$246

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 12/9

11:00 am-5:30 pm

1 stop6h 30m

London Heathrow

Fri 12/12

12:25 pm-6:00 pm

1 stop5h 35m

$273

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 11/17

6:55 am-12:40 pm

1 stop5h 45m

London Heathrow

Thu 11/20

1:40 pm-7:00 pm

1 stop5h 20m

$285

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 3/14

11:55 am-5:50 pm

1 stop5h 55m

London Heathrow

Sun 3/15

6:00 am-3:15 pm

2 stops9h 15m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 21 results
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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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, December is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $77). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of $217). 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 OPO to LHR?

Find hourly flight availability from Porto 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 November 4, 2025.

One of the essential ways to save on airfare from Porto to London Heathrow Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 50% on airfare.

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 5h 30m. 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, December is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $77). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of $217). 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
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Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
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