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$56+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Porto to London Heathrow are usually found in May or February, booked 4 days in advance, depart on a Monday or Tuesday and return on a Sunday

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 June 12, 2025.

Round-trip from

$224
(Booking.com)

One-way from

$56
(Vueling Global)

Popular in

July

Cheapest in

May

Average price

$245
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 ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/12. 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 7/910:00 pmOPO - LHR
1 stop11h 10mVueling
Tue 7/158:50 pmLHR - OPO
1 stop11h 10mVueling
Deal found 6/12$224
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Thu 11/612:05 pmOPO - LHR
1 stop6h 50mTAP AIR PORTUGAL
Thu 11/136:00 amLHR - OPO
1 stop12h 00mTAP AIR PORTUGAL
Deal found 6/10$225
This SWISS deal was found by Cheapflights users on 6/10. 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 12/55:20 pmOPO - LHR
1 stop14h 45mSWISS
Tue 12/96:00 amLHR - OPO
1 stop5h 15mSWISS
Deal found 6/10$228
This Lufthansa deal was found by Cheapflights users on 6/12. 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.
Wed 10/226:15 amOPO - LHR
1 stop9h 25mLufthansa
Sat 11/18:45 amLHR - OPO
1 stop15h 00mLufthansa
Deal found 6/12$237
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/910:00 pmOPO - LHR
1 stop11h 10mMultiple Airlines
Wed 7/168:50 pmLHR - OPO
1 stop10h 00mMultiple Airlines
Deal found 6/11$243
This Booking.com deal was found by Cheapflights users on 6/11. 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.
Tue 7/84:55 pmOPO - LHR
1 stop5h 40mIberia
Mon 7/149:55 amLHR - OPO
1 stop11h 25mIberia
Deal found 6/11$272
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:20 amOPO - LHR
1 stop8h 55mBritish Airways
Sat 12/67:40 pmLHR - OPO
1 stop12h 00mBritish Airways
Deal found 6/10$292
This KLM deal was found by Cheapflights users on 6/11. 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.
Fri 6/2011:25 amOPO - LHR
1 stop8h 00mKLM
Sun 6/226:30 amLHR - OPO
1 stop9h 05mKLM
Deal found 6/11$326
This Brussels Airlines deal was found by Cheapflights users on 6/10. 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 6/1412:55 pmOPO - LHR
1 stop8h 40mBrussels Airlines
Sat 6/2111:05 amLHR - OPO
1 stop7h 15mBrussels Airlines
Deal found 6/10$327

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 June 12, 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 7/9

10:00 pm-9:10 am

1 stop11h 10m

London Heathrow

Tue 7/15

8:50 pm-8:00 am

1 stop11h 10m

$224

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 11/6

12:05 pm-6:55 pm

1 stop6h 50m

London Heathrow

Thu 11/13

6:00 am-6:00 pm

1 stop12h 00m

$225

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 12/5

5:20 pm-8:05 am

1 stop14h 45m

London Heathrow

Tue 12/9

6:00 am-11:15 am

1 stop5h 15m

$228

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 10/22

6:15 am-3:40 pm

1 stop9h 25m

London Heathrow

Sat 11/1

8:45 am-11:45 pm

1 stop15h 00m

$237

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 7/9

10:00 pm-9:10 am

1 stop11h 10m

London Heathrow

Wed 7/16

8:50 pm-6:50 am

1 stop10h 00m

$243

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 7/8

4:55 pm-10:35 pm

1 stop5h 40m

London Heathrow

Mon 7/14

9:55 am-9:20 pm

1 stop11h 25m

$272

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 12/6

8:20 am-5:15 pm

1 stop8h 55m

London Heathrow

Sat 12/6

7:40 pm-7:40 am

1 stop12h 00m

$292

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 9/5

12:55 pm-8:55 pm

1 stop8h 00m

London Heathrow

Fri 9/12

11:05 am-4:00 pm

1 stop4h 55m

$327

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 11/18

8:05 pm-2:45 pm

1 stop18h 40m

$56

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 10/29

8:40 pm-9:15 am

1 stop12h 35m

$83

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

How far ahead should I book a flight from Porto to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Porto to Heathrow. Price data was last updated on June 9, 2025.

Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from Porto to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $1,108). 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 June 12, 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
To help decide which airline to fly from Porto to London, see what other customers have to say about Aegean Airlines, KLM and LOT. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.2
Very good
759 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,358 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,077 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,623 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Brussels Airlines
7.4
Good
355 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Comfort

7.9

Entertainment

7.0

Overall

8.2

Food

7.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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 are the cheapest airlines flying from Porto to London Heathrow Airport round-trip?

    Currently priced at $224, Vueling will fly you from Porto to London Heathrow Airport and back. In addition to Vueling, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and SWISS - these airlines can fly you to your destination from $225 and $228, respectively. Vueling is priced at 6% 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 $56. However, be on the lookout for offers from Iberia and SWISS, 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 $1,108). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
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Gatwick
Orpington
Watford
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Folkestone
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Broadway
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$181Average$329FlexibilityNo cancel feeOn-timeN/A

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