HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$61+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 4, 2025.

This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:55 pmOPO - LHR
1 stop11h 15mVueling
Tue 1/66:50 pmLHR - OPO
1 stop13h 20mVueling
Deal found 12/2$186
This Air France deal was found by Cheapflights users on 12/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:25 amOPO - LHR
1 stop6h 55mAir France
Wed 12/317:25 pmLHR - OPO
1 stop15h 05mAir France
Deal found 12/2$200
This KLM deal was found by Cheapflights users on 12/3. 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.
Mon 12/2211:15 amOPO - LHR
1 stop5h 45mKLM
Thu 1/15:05 pmLHR - OPO
1 stop5h 20mKLM
Deal found 12/3$214
This Gotogate deal was found by Cheapflights users on 12/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:55 pmOPO - LHR
1 stop11h 15mMultiple Airlines
Fri 1/27:55 pmLHR - OPO
1 stop12h 00mMultiple Airlines
Deal found 12/2$221
This KLM deal was found by Cheapflights users on 12/3. 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 12/246:00 amOPO - LHR
1 stop7h 50mKLM
Mon 12/296:30 amLHR - OPO
1 stop8h 55mKLM
Deal found 12/3$247
This Expedia deal was found by Cheapflights users on 12/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:00 pmOPO - LHR
1 stop7h 35mMultiple Airlines
Sat 12/67:40 pmLHR - OPO
1 stop12h 00mMultiple Airlines
Deal found 12/4$255
This KLM deal was found by Cheapflights users on 12/2. 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.
Tue 12/309:55 amOPO - LHR
1 stop9h 20mKLM
Tue 1/68:40 amLHR - OPO
1 stop10h 00mKLM
Deal found 12/2$258
This KLM deal was found by Cheapflights users on 12/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:15 amOPO - LHR
1 stop9h 35mKLM
Sat 1/38:40 amLHR - OPO
1 stop6h 45mKLM
Deal found 12/4$259
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/3. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:00 pmOPO - LHR
1 stop5h 35mTAP AIR PORTUGAL
Sat 1/36:30 pmLHR - OPO
1 stop6h 00mTAP AIR PORTUGAL
Deal found 12/3$271
This FlightHub deal was found by Cheapflights users on 12/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:00 pmOPO - LHR
1 stop8h 40mTAP AIR PORTUGAL
Fri 12/58:15 amLHR - OPO
1 stop9h 45mTAP AIR PORTUGAL
Deal found 12/2$277
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/2. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:05 pmOPO - LHR
1 stop5h 30mTAP AIR PORTUGAL
Sat 12/61:40 pmLHR - OPO
1 stop5h 20mTAP AIR PORTUGAL
Deal found 12/2$286
This KLM deal was found by Cheapflights users on 12/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:15 amOPO - LHR
1 stop4h 50mKLM
Wed 1/76:30 amLHR - OPO
1 stop8h 55mKLM
Deal found 12/4$291

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(FlightHub)

One-way from

$61
(Vueling Global)

Popular in

July

Cheapest in

March

Average price

$223
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. 21% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 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

Thu 2/26

8:05 pm-2:45 pm

1 stop18h 40m

London Heathrow

Sun 3/1

3:15 pm-7:55 am

1 stop16h 40m

$180

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 1/16

12:55 pm-9:20 pm

1 stop8h 25m

London Heathrow

Wed 1/21

6:50 am-12:05 pm

1 stop5h 15m

$208

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 1/16

6:30 am-1:50 pm

1 stop7h 20m

London Heathrow

Sun 1/18

7:20 pm-10:30 am

1 stop15h 10m

$210

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 3/11

12:00 pm-10:40 pm

1 stop10h 40m

London Heathrow

Sun 3/15

1:40 pm-6:55 pm

1 stop5h 15m

$215

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 1/17

11:00 am-6:55 pm

1 stop7h 55m

London Heathrow

Wed 1/21

6:30 pm-8:00 am

1 stop13h 30m

$228

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 2/2

4:10 pm-9:35 pm

1 stop5h 25m

London Heathrow

Thu 2/5

12:25 pm-6:00 pm

1 stop5h 35m

$236

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 3/6

12:00 pm-5:30 pm

1 stop5h 30m

London Heathrow

Sun 3/8

12:25 pm-6:05 pm

1 stop5h 40m

$248

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 2/12

10:20 am-3:30 pm

1 stop5h 10m

London Heathrow

Sun 2/15

8:15 am-3:00 pm

1 stop6h 45m

$250

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 12/23

11:15 am-8:50 pm

1 stop9h 35m

London Heathrow

Sat 1/3

8:40 am-3:25 pm

1 stop6h 45m

$259

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 1/19

6:55 am-12:40 pm

1 stop5h 45m

London Heathrow

Mon 1/19

6:30 pm-8:00 am

1 stop13h 30m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 22 results
1
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 December.
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 November is currently the most expensive (average of $235). 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 December 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.

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

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 8h 25m. 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 November is currently the most expensive (average of $235). 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
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Gatwick flights
Lisbon to Heathrow flights
Porto to Gatwick flights
Faro to Heathrow flights
Faro to Gatwick flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.