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$73+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$186
(Kiwi.com)

One-way from

$73
(Vueling Global)

Popular in

July

Cheapest in

February

Average price

$264
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 ($78 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 September 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 September 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:00 amOPO - LHR
1 stop6h 30mTAP AIR PORTUGAL
Sun 12/148:15 amLHR - OPO
1 stop13h 45mTAP AIR PORTUGAL
Deal found 9/15$191
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 11/81:00 pmOPO - LHR
1 stop5h 55mTAP AIR PORTUGAL
Wed 11/191:40 pmLHR - OPO
1 stop5h 15mTAP AIR PORTUGAL
Deal found 9/15$194
This FlightHub deal was found by Cheapflights users on 9/16. 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.
Sun 11/236:55 amOPO - LHR
1 stop5h 45mTAP AIR PORTUGAL
Sat 11/2912:25 pmLHR - OPO
1 stop5h 35mTAP AIR PORTUGAL
Deal found 9/16$195
This KLM deal was found by Cheapflights users on 9/15. 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 11/84:10 pmOPO - LHR
1 stop4h 40mKLM
Sun 11/98:40 amLHR - OPO
1 stop6h 45mKLM
Deal found 9/15$205
This KLM deal was found by Cheapflights users on 9/15. 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 11/84:10 pmOPO - LHR
1 stop4h 40mKLM
Mon 11/1010:00 amLHR - OPO
1 stop5h 25mKLM
Deal found 9/15$206
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Wed 11/1210:55 amOPO - LHR
1 stop6h 35mTAP AIR PORTUGAL
Sun 11/1612:25 pmLHR - OPO
1 stop5h 40mTAP AIR PORTUGAL
Deal found 9/14$209
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/16. 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 11/114:00 pmOPO - LHR
1 stop5h 35mTAP AIR PORTUGAL
Sat 11/156:00 amLHR - OPO
1 stop6h 10mTAP AIR PORTUGAL
Deal found 9/16$213
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/15. 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 9/15$214
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Fri 10/312:20 pmOPO - LHR
1 stop7h 15mTAP AIR PORTUGAL
Fri 11/712:25 pmLHR - OPO
1 stop9h 40mTAP AIR PORTUGAL
Deal found 9/16$221
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/81:20 pmOPO - LHR
1 stop6h 45mMultiple Airlines
Wed 10/158:50 pmLHR - OPO
1 stop10h 00mMultiple Airlines
Deal found 9/15$226
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/147:35 amOPO - LHR
1 stop12h 30mMultiple Airlines
Tue 10/219:55 amLHR - OPO
1 stop13h 00mMultiple Airlines
Deal found 9/16$227

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 September 16, 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

Tue 2/24

11:35 am-5:15 pm

1 stop5h 40m

London Heathrow

Tue 3/10

11:25 am-7:20 pm

1 stop7h 55m

$186

PortoLondon

OPO - LHR

OPOLHR

Porto

Mon 1/12

8:35 am-2:25 pm

1 stop5h 50m

London Heathrow

Thu 1/15

3:15 pm-8:20 am

1 stop17h 05m

$191

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 2/25

11:35 am-5:15 pm

1 stop5h 40m

London Heathrow

Wed 3/11

9:15 am-3:15 pm

1 stop6h 00m

$204

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 2/25

7:35 am-2:45 pm

2 stops7h 10m

London Heathrow

Thu 3/12

9:15 am-3:15 pm

1 stop6h 00m

$205

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 11/8

4:10 pm-8:50 pm

1 stop4h 40m

London Heathrow

Mon 11/10

10:00 am-3:25 pm

1 stop5h 25m

$206

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 1/16

12:00 pm-5:30 pm

1 stop5h 30m

London Heathrow

Sun 1/18

1:40 pm-6:55 pm

1 stop5h 15m

$213

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 11/11

4:00 pm-9:35 pm

1 stop5h 35m

London Heathrow

Sat 11/15

6:30 pm-12:30 am

1 stop6h 00m

$213

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 11/25

6:55 am-12:40 pm

1 stop5h 45m

London Heathrow

Sat 11/29

1:40 pm-7:00 pm

1 stop5h 20m

$213

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 11/27

8:55 pm-2:45 pm

1 stop17h 50m

$73

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 10/22

10:00 pm-9:10 am

1 stop11h 10m

$81

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 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 September 16, 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.

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 September 16, 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
1,975 reviews

Boarding

7.0

Crew

7.8

Food

6.2

Comfort

7.1

Entertainment

6.3

Overall

7.1

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
1,975 reviews
TAP AIR PORTUGAL
7.1
Good
1,975 reviews

Boarding

7.0

Crew

7.8

Food

6.2

Comfort

7.1

Entertainment

6.3

Overall

7.1

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.

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

    Departing from Porto to London Heathrow Airport will take you 4h 40m. The distance between Porto and London Heathrow Airport is about 806 mi. This flight may include one or multiple stops.

  • 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.

  • What are the cheapest airlines to fly from Porto to London Heathrow Airport one-way?

    The cheapest airline one-way is Vueling, with whom users have recently found tickets for as low as $81. However, be on the lookout for offers from Iberia and KLM, as they are both options that can get you from Porto to London Heathrow Airport for a low price.

  • 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
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$224Average$333FlexibilityNo cancel feeOn-timeN/A

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