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$62+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
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 March 1, 2026.

This Booking.com deal was found by Cheapflights users on 3/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Wed 4/228:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 3/1$153
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 4/148:35 am
OPO
-
LHR
1 stop11h 30m
Vueling
Thu 4/169:55 am
LHR
-
OPO
1 stop6h 15m
Vueling
Deal found 2/25$160
This deal was found by Cheapflights users on 2/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:05 pm
OPO
-
LHR
1 stop6h 50m
TAP AIR PORTUGAL
Sun 3/294:35 pm
LHR
-
OPO
1 stop6h 40m
TAP AIR PORTUGAL
Deal found 2/28$202
This Kiwi.com deal was found by Cheapflights users on 3/1. 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.
Sat 3/78:55 am
OPO
-
LHR
1 stop8h 35m
TAP AIR PORTUGAL
Sat 3/146:30 pm
LHR
-
OPO
1 stop6h 00m
TAP AIR PORTUGAL
Deal found 3/1$204
This Booking.com deal was found by Cheapflights users on 2/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:00 am
OPO
-
LHR
1 stop7h 40m
Multiple Airlines
Wed 10/286:50 pm
LHR
-
OPO
1 stop13h 20m
Multiple Airlines
Deal found 2/28$207
This KLM deal was found by Cheapflights users on 2/27. 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.
Sat 3/145:00 am
OPO
-
LHR
1 stop7h 05m
KLM
Sat 3/215:50 pm
LHR
-
OPO
1 stop16h 40m
KLM
Deal found 2/27$208
This Expedia deal was found by Cheapflights users on 2/27. 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.
Fri 11/278:40 pm
OPO
-
LHR
1 stop12h 35m
Multiple Airlines
Tue 12/17:05 pm
LHR
-
OPO
1 stop12h 35m
Multiple Airlines
Deal found 2/27$210
This Kiwi.com deal was found by Cheapflights users on 2/25. 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.
Wed 4/810:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Fri 4/108:50 pm
LHR
-
OPO
1 stop11h 10m
Vueling
Deal found 2/25$211
This Booking.com deal was found by Cheapflights users on 3/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/41:45 pm
OPO
-
LHR
1 stop6h 20m
Vueling
Tue 4/149:55 am
LHR
-
OPO
1 stop6h 15m
Vueling
Deal found 3/1$213
This Brussels Airlines deal was found by Cheapflights users on 3/1. 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.
Wed 5/204:50 pm
OPO
-
LHR
1 stop4h 45m
Brussels Airlines
Wed 5/2711:05 am
LHR
-
OPO
1 stop4h 55m
Brussels Airlines
Deal found 3/1$214
This KLM deal was found by Cheapflights users on 2/25. 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.
Sun 11/155:00 am
OPO
-
LHR
1 stop5h 45m
KLM
Sat 11/216:30 am
LHR
-
OPO
1 stop8h 55m
KLM
Deal found 2/25$216
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Tue 4/1410:00 pm
OPO
-
LHR
1 stop11h 10m
Vueling
Fri 4/178:50 pm
LHR
-
OPO
1 stop16h 15m
Vueling
Deal found 3/1$217

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 March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$153
(Booking.com)

One-way from

$62
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$439
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. 14% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 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

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 3/26

11:15 am-8:50 pm

1 stop9h 35m

London Heathrow

Wed 4/1

8:40 am-3:30 pm

1 stop6h 50m

$259

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 3/12

9:00 am-3:30 pm

1 stop6h 30m

London Heathrow

Thu 3/12

7:55 pm-7:45 am

1 stop11h 50m

$292

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 3/14

12:00 pm-5:30 pm

1 stop5h 30m

London Heathrow

Sat 3/14

7:55 pm-5:00 pm

1 stop21h 05m

$292

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 3/11

6:55 am-12:40 pm

1 stop5h 45m

London Heathrow

Wed 3/11

6:30 pm-1:05 pm

1 stop18h 35m

$305

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 3/26

11:15 am-5:00 pm

1 stop5h 45m

London Heathrow

Mon 4/6

9:55 am-3:30 pm

1 stop5h 35m

$319

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 3/31

4:00 pm-10:00 pm

1 stop6h 00m

London Heathrow

Sun 4/5

1:45 pm-8:25 pm

1 stop6h 40m

$380

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 3/30

4:20 pm-10:00 pm

1 stop5h 40m

London Heathrow

Wed 4/1

7:50 pm-8:10 am

1 stop12h 20m

$392

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 7/30

8:40 pm-2:15 pm

2 stops17h 35m

London Heathrow

Thu 8/6

3:00 pm-7:40 am

2 stops16h 40m

$426

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 4/17

4:50 pm-8:25 am

2 stops15h 35m

London Heathrow

Mon 4/20

3:50 pm-8:00 am

2 stops16h 10m

$489

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 4/17

4:50 pm-8:25 am

2 stops15h 35m

London Heathrow

Sun 4/19

3:50 pm-8:00 am

2 stops16h 10m

$502

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 22 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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 $75). 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.

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 6h 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, February is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $75). 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
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

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