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

Vueling, at £141, was found to be the cheapest airline from Porto to London Heathrow Airport.Alternate airlines flying return to your destination include Iberia and TAP AIR PORTUGAL. Vueling is priced at 19% 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?

One-way options have recently been found by users for as low as £41 on Vueling. Other airlines that offer cheap prices include Iberia from £61 and TAP AIR PORTUGAL from £73 one-way.

What is the cheapest day to fly from Porto to London Heathrow Airport?

Travellers seeking maximum savings on their Porto to London Heathrow Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

Sunday flights are found to be more expensive to fly from Porto to London Heathrow Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London Heathrow Airport.

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

Travelers have found it’s best to book a flight 30 days in advance to save up to 56% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 30 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Porto to London Heathrow Airport 1-2 weeks in advance for as low as £102, or £149 for flights within the next 24 hours.

What is the cheapest month to fly from Porto to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Porto in February are about £102 on average during February, but can be found for as low as £26.

What airport do you fly from for flights from Porto to London Heathrow?

Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to London Heathrow. 1 airline have flights from Porto to London Heathrow on a regular basis. Booking flights from Porto to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

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 holiday 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.

£41+ Flights from Porto to London Heathrow Airport

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 Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Porto to Heathrow

Round-trip from	£135
One-way from	£41
Popular in	July
Cheapest in	May
Average price	£180

22/10-30/10
2 total stops
11h 00m total
Porto to London

Search Deals

Vueling
18/11
1 total stop
18h 40m total
Porto to London

Search Deals

Highest demand for flights based on searches. 23% potential increase in price (£38 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 13 June 2025.

Wed 22/1006:10OPO - LHR

1 stop6h 10mMultiple Airlines

Thu 30/1015:30LHR - OPO

1 stop4h 50mMultiple Airlines

Deal found 12/6£135

Sat 6/1220:05OPO - LHR

1 stop18h 40mVueling

Sat 13/1220:50LHR - OPO

1 stop11h 20mVueling

Deal found 12/6£141

Sat 25/1020:35OPO - LHR

1 stop13h 40mIberia

Sat 1/1119:40LHR - OPO

1 stop12h 00mIberia

Deal found 12/6£149

Fri 3/1009:00OPO - LHR

1 stop13h 55mTAP AIR PORTUGAL

Sun 5/1006:00LHR - OPO

1 stop11h 00mTAP AIR PORTUGAL

Deal found 11/6£157

Wed 22/1006:15OPO - LHR

1 stop9h 25mLufthansa

Sat 1/1108:45LHR - OPO

1 stop15h 00mLufthansa

Deal found 12/6£174

Fri 24/1019:20OPO - LHR

1 stop12h 35mSWISS

Tue 4/1118:40LHR - OPO

1 stop16h 35mSWISS

Deal found 12/6£175

Sat 29/1112:55OPO - LHR

1 stop8h 25mBrussels Airlines

Sun 30/1106:50LHR - OPO

1 stop5h 15mBrussels Airlines

Deal found 12/6£177

Fri 4/720:35OPO - LHR

1 stop11h 05mKLM

Tue 8/714:45LHR - OPO

1 stop7h 30mKLM

Deal found 12/6£195

Tue 28/1012:25OPO - LHR

1 stop20h 50mBritish Airways

Fri 31/1017:25LHR - OPO

1 stop14h 15mBritish Airways

Deal found 12/6£221

Fri 18/719:05OPO - LHR

1 stop12h 55mAir France

Sun 20/717:35LHR - OPO

1 stop14h 50mAir France

Deal found 11/6£280

Best flights from Porto to Heathrow
Discover carefully curated flight deals from Porto to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Wed 22/1006:10OPO - LHR

1 stop6h 10mMultiple Airlines

Thu 30/1015:30LHR - OPO

1 stop4h 50mMultiple Airlines

Deal found 12/6£135

Sat 6/1220:05OPO - LHR

1 stop18h 40mVueling

Sat 13/1220:50LHR - OPO

1 stop11h 20mVueling

Deal found 12/6£141

Sat 25/1020:35OPO - LHR

1 stop13h 40mIberia

Sat 1/1119:40LHR - OPO

1 stop12h 00mIberia

Deal found 12/6£149

Fri 3/1009:00OPO - LHR

1 stop13h 55mTAP AIR PORTUGAL

Sun 5/1006:00LHR - OPO

1 stop11h 00mTAP AIR PORTUGAL

Deal found 11/6£157

Wed 22/1006:15OPO - LHR

1 stop9h 25mLufthansa

Sat 1/1108:45LHR - OPO

1 stop15h 00mLufthansa

Deal found 12/6£174

Fri 24/1019:20OPO - LHR

1 stop12h 35mSWISS

Tue 4/1118:40LHR - OPO

1 stop16h 35mSWISS

Deal found 12/6£175

Sat 29/1112:55OPO - LHR

1 stop8h 25mBrussels Airlines

Sun 30/1106:50LHR - OPO

1 stop5h 15mBrussels Airlines

Deal found 12/6£177

Fri 4/720:35OPO - LHR

1 stop11h 05mKLM

Tue 8/714:45LHR - OPO

1 stop7h 30mKLM

Deal found 12/6£195

Tue 28/1012:25OPO - LHR

1 stop20h 50mBritish Airways

Thu 30/1006:15LHR - OPO

1 stop9h 45mBritish Airways

Deal found 12/6£254

Fri 18/719:05OPO - LHR

1 stop12h 55mAir France

Sun 20/717:35LHR - OPO

1 stop14h 50mAir France

Deal found 10/6£269

Last-minute flights from Porto to Heathrow
Discover last-minute flight deals from Porto to Heathrow. Data last updated 13 June 2025 and is based on user searches.

Fri 13/611:00OPO - LHR

1 stop11h 05mTAP AIR PORTUGAL

Wed 3/919:50LHR - OPO

1 stop12h 20mTAP AIR PORTUGAL

Deal found 12/6£202

Sat 14/619:10OPO - LHR

1 stop25h 45mBrussels Airlines

Sat 21/606:50LHR - OPO

1 stop9h 10mBrussels Airlines

Deal found 11/6£271

Tue 17/610:05OPO - LHR

1 stop8h 25mSWISS

Tue 1/706:00LHR - OPO

1 stop5h 25mSWISS

Deal found 11/6£219

Tue 17/616:00OPO - LHR

1 stop6h 00mTAP AIR PORTUGAL

Tue 1/706:00LHR - OPO

1 stop9h 00mTAP AIR PORTUGAL

Deal found 12/6£230

Tue 17/612:55OPO - LHR

1 stop8h 40mBrussels Airlines

Fri 20/611:05LHR - OPO

1 stop4h 55mBrussels Airlines

Deal found 10/6£251

Tue 17/611:05OPO - LHR

1 stop8h 35mLufthansa

Tue 24/610:30LHR - OPO

1 stop12h 20mLufthansa

Deal found 10/6£267

Tue 17/608:35OPO - LHR

1 stop11h 30mIberia

Wed 18/609:55LHR - OPO

1 stop6h 20mIberia

Deal found 11/6£282

Tue 17/623:35OPO - LHR

1 stop11h 40mAegean Airlines

Wed 25/622:15LHR - OPO

1 stop24h 25mAegean Airlines

Deal found 10/6£971

Wed 18/614:10OPO - LHR

1 stop8h 20mMultiple Airlines

Wed 25/606:00LHR - OPO

1 stop5h 30mMultiple Airlines

Deal found 12/6£208

Thu 19/622:00OPO - LHR

1 stop11h 10mVueling

Sat 28/620:50LHR - OPO

1 stop11h 10mVueling

Deal found 12/6£230

Fri 20/611:25OPO - LHR

1 stop9h 30mKLM

Tue 24/606:30LHR - OPO

1 stop11h 25mKLM

Deal found 12/6£210

Sun 22/605:00OPO - LHR

2 stops11h 00mScandinavian Airlines

Wed 25/606:40LHR - OPO

2 stops15h 35mScandinavian Airlines

Deal found 10/6£8,456

One-way flights from Porto to Heathrow
Search for one-way flight options from Porto to Heathrow. Find affordable one-way fares based on user searches. Data last updated 13 June 2025.

Tue 18/1120:05OPO - LHR

1 stop18h 40mVueling

Deal found 10/6£41

Wed 15/1006:10OPO - LHR

1 stop15h 45mMultiple Airlines

Deal found 11/6£54

Wed 29/1020:40OPO - LHR

1 stop12h 35mIberia

Deal found 10/6£61

Fri 10/1009:00OPO - LHR

1 stop13h 55mTAP AIR PORTUGAL

Deal found 11/6£73

Sun 13/718:55OPO - LHR

1 stop15h 50mKLM

Deal found 10/6£82

Mon 27/1020:40OPO - LHR

1 stop12h 35mBritish Airways

Deal found 12/6£88

Tue 15/708:40OPO - LHR

2 stops12h 50mSWISS

Deal found 11/6£140

Sun 6/716:50OPO - LHR

1 stop4h 45mBrussels Airlines

Deal found 10/6£171

Sat 26/700:35OPO - LHR

1 stop10h 40mAegean Airlines

Deal found 12/6£180

Cheapflights Fare Finder

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

Wed 22/10

06:10-12:20

1 stop6h 10m

London Heathrow

Thu 30/10

15:30-20:20

1 stop4h 50m

£135

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 6/12

20:05-14:45

1 stop18h 40m

London Heathrow

Sat 13/12

20:50-08:10

1 stop11h 20m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 25/10

20:35-10:15

1 stop13h 40m

London Heathrow

Sat 1/11

19:40-07:40

1 stop12h 00m

£149

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 3/10

09:00-22:55

1 stop13h 55m

London Heathrow

Sun 5/10

06:00-17:00

1 stop11h 00m

£157

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 22/10

06:15-15:40

1 stop9h 25m

London Heathrow

Sat 1/11

08:45-23:45

1 stop15h 00m

£174

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 24/10

19:20-17:50

1 stop22h 30m

London Heathrow

Wed 29/10

20:05-18:35

1 stop22h 30m

£175

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 29/11

12:55-21:20

1 stop8h 25m

London Heathrow

Sun 30/11

06:50-12:05

1 stop5h 15m

£177

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 4/7

20:35-07:40

1 stop11h 05m

London Heathrow

Tue 8/7

14:45-22:15

1 stop7h 30m

£195

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 28/10

12:25-09:15

1 stop20h 50m

London Heathrow

Thu 30/10

06:15-16:00

1 stop9h 45m

£254

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 18/7

19:05-08:00

1 stop12h 55m

London Heathrow

Sun 20/7

17:35-08:25

1 stop14h 50m

£269

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 19 results

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 return 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?

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, January is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £112). Flying from Porto to London Heathrow Airport in August is currently the most expensive (average of £164). 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?

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 midday tend to be the most expensive. A flight in the morning could potentially save you up to 38% on airfare.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Aegean Airlines, KLM and Air France from Porto to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Aegean Airlines

8.2

Very Good

759 reviews

Check prices

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

Check prices

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

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

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

Air France

7.5

Good

1,463 reviews

Aegean Airlines

8.2

Very Good

759 reviews

Check prices

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

1,624 reviews

Aegean Airlines

8.2

Very Good

759 reviews

Check prices

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

Check prices

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

What airport do you fly from for flights from Porto to London Heathrow?
Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to London Heathrow. 1 airline have flights from Porto to London Heathrow on a regular basis. Booking flights from Porto to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.
What are the cheapest airlines flying from Porto to London Heathrow Airport round-trip?
Vueling, at £141, was found to be the cheapest airline from Porto to London Heathrow Airport.Alternate airlines flying return to your destination include Iberia and TAP AIR PORTUGAL. Vueling is priced at 19% 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?
One-way options have recently been found by users for as low as £41 on Vueling. Other airlines that offer cheap prices include Iberia from £61 and TAP AIR PORTUGAL from £73 one-way.
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 holiday 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, January is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of £112). Flying from Porto to London Heathrow Airport in August is currently the most expensive (average of £164). 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

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Top airline flying from Porto to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£114	Average£179	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights

Fly with Cheapflights

How does Cheapflights help users find flights from Porto to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Porto today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Porto to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Porto by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Porto to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Porto to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Porto to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Porto to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Porto to London Heathrow Airport from £41

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Porto to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Porto to Heathrow

Cheapest flights from Porto to HeathrowExplore 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 13 June 2025.

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 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to London Heathrow Airport that are best for you.

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.

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 return flight from Porto to Heathrow. Price data was last updated on 9 June 2025.

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

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 13 June 2025.

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Aegean Airlines, KLM and Air France from Porto to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

Can I find deals for flights from Porto to Heathrow that include hotel bookings?

How can I find direct flights from Porto to Heathrow?

Can I find deals for business class flights from Porto to Heathrow?

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

Travelling to a place near Porto?

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.

Top airline flying from Porto to Heathrow

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Porto to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Porto to Heathrow?

Can Cheapflights find flights from Porto to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Porto to Heathrow become cheaper?

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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 13 June 2025.