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$67+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$208
(TAP AIR PORTUGAL)

One-way from

$67
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$375
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. 26% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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.
Wed 9/1710:00 amOPO - LHR
1 stop8h 50mTAP AIR PORTUGAL
Mon 9/228:00 amLHR - OPO
1 stop9h 00mTAP AIR PORTUGAL
Deal found 8/14$219
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/307:35 amOPO - LHR
2 stops7h 10mMultiple Airlines
Sat 10/43:05 pmLHR - OPO
1 stop7h 45mMultiple Airlines
Deal found 8/13$228
This Lufthansa deal was found by Cheapflights users on 8/13. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:45 pmOPO - LHR
1 stop5h 50mMultiple Airlines
Tue 12/96:00 amLHR - OPO
1 stop5h 15mMultiple Airlines
Deal found 8/13$236
This FlightHub deal was found by Cheapflights users on 8/14. 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 9/1610:30 pmOPO - LHR
1 stop14h 15mTAP AIR PORTUGAL
Sun 9/217:50 pmLHR - OPO
1 stop12h 00mTAP AIR PORTUGAL
Deal found 8/14$238
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. 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.
Sat 10/113:45 pmOPO - LHR
1 stop6h 15mTAP AIR PORTUGAL
Mon 10/131:45 pmLHR - OPO
1 stop6h 40mTAP AIR PORTUGAL
Deal found 8/14$239
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. 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.
Mon 11/174:10 pmOPO - LHR
1 stop5h 25mTAP AIR PORTUGAL
Thu 11/2012:25 pmLHR - OPO
1 stop5h 35mTAP AIR PORTUGAL
Deal found 8/14$240
This Expedia deal was found by Cheapflights users on 8/14. 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.
Sat 9/1310:10 amOPO - LHR
1 stop10h 45mMultiple Airlines
Sat 9/208:05 pmLHR - OPO
1 stop11h 50mMultiple Airlines
Deal found 8/14$242
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/13. 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.
Sat 9/203:45 pmOPO - LHR
1 stop6h 15mTAP AIR PORTUGAL
Sun 9/281:45 pmLHR - OPO
1 stop6h 40mTAP AIR PORTUGAL
Deal found 8/13$250
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. 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.
Fri 12/53:55 pmOPO - LHR
1 stop5h 40mTAP AIR PORTUGAL
Tue 12/98:15 amLHR - OPO
1 stop6h 45mTAP AIR PORTUGAL
Deal found 8/14$251
This SWISS deal was found by Cheapflights users on 8/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:20 pmOPO - LHR
1 stop12h 45mSWISS
Mon 12/158:05 pmLHR - OPO
1 stop22h 30mSWISS
Deal found 8/14$252
This SWISS deal was found by Cheapflights users on 8/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:35 pmOPO - LHR
1 stop17h 40mSWISS
Thu 9/186:40 pmLHR - OPO
1 stop13h 15mSWISS
Deal found 8/14$253
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. 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 10/110:00 amOPO - LHR
1 stop12h 00mTAP AIR PORTUGAL
Fri 10/36:00 amLHR - OPO
1 stop12h 55mTAP AIR PORTUGAL
Deal found 8/14$261

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 14, 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

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

$208

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 9/30

8:10 am-2:15 pm

1 stop6h 05m

London Heathrow

Sat 10/4

3:05 pm-10:50 pm

1 stop7h 45m

$219

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 9/17

10:00 am-6:50 pm

1 stop8h 50m

London Heathrow

Mon 9/22

8:00 am-5:00 pm

1 stop9h 00m

$219

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 11/4

9:55 am-4:05 pm

1 stop6h 10m

London Heathrow

Sat 11/8

7:20 pm-10:30 am

1 stop15h 10m

$228

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 12/5

1:45 pm-7:35 pm

1 stop5h 50m

London Heathrow

Tue 12/9

6:00 am-11:15 am

1 stop5h 15m

$236

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 10/11

7:00 am-12:45 pm

1 stop5h 45m

London Heathrow

Mon 10/13

1:45 pm-8:25 pm

1 stop6h 40m

$238

PortoLondon

OPO - LHR

OPOLHR

Porto

Sun 9/28

10:30 pm-10:20 am

1 stop11h 50m

London Heathrow

Sun 10/5

6:00 am-7:00 pm

1 stop13h 00m

$238

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 9/16

4:00 pm-10:00 pm

1 stop6h 00m

London Heathrow

Sun 9/21

4:35 pm-11:15 pm

1 stop6h 40m

$238

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 11/11

4:00 pm-9:35 pm

1 stop5h 35m

London Heathrow

Sat 11/15

6:00 am-12:10 pm

1 stop6h 10m

$238

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 11/29

8:05 pm-2:45 pm

1 stop18h 40m

$67

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results
1
2

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, November is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $661). Flying from Porto to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 August 14, 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 at noon tend to be the most expensive. A flight in the morning could potentially save you up to 31% on airfare.

How much does it cost to fly round-trip from Porto 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 August 14, 2025.
See what other customers who have flown with TAP AIR PORTUGAL from Porto to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.1
Good
1,948 reviews

Boarding

7.0

Comfort

7.1

Entertainment

6.3

Food

6.2

Overall

7.1

Crew

7.8

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
TAP AIR PORTUGAL
7.1
Good
1,948 reviews

Boarding

7.0

Comfort

7.1

Entertainment

6.3

Food

6.2

Overall

7.1

Crew

7.8

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.

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 1 airline has flights from the Porto airport to London Heathrow. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

  • What is the cheapest airline to fly from Porto to London Heathrow Airport round-trip?

    Currently priced at $224, TAP AIR PORTUGAL will fly you from Porto to London Heathrow Airport and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. TAP AIR PORTUGAL is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • 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, November is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of $661). Flying from Porto to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Porto to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Porto to Heathrow

Discover the top airline that operate flights from Porto 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 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$224Average$333FlexibilityNo cancel feeOn-timeN/A

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