What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Porto to London Heathrow?

Vueling, Iberia, and British Airways are the most popular carriers operating from Porto to London Heathrow

How often are flights from Porto to London delayed?

Historically, on average around 6% of flights between Porto and London have experienced a delay on any given week. The average delay length over the past 12 months has been 77 minutes.

What is the most punctual flight time for Porto to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Porto Airport to London Heathrow Airport?

Prices for flights from Porto Airport to London Heathrow Airport are refreshed on a daily basis.

How old do you have to be to fly from Porto Airport to London Heathrow Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£45 Cheap Flights from Porto to London Heathrow Airport in 2025/26

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20:05 - 14:45OPO-LHR

18h 40m1 stop

15:15 - 07:55LHR-OPO

16h 40m1 stop

£105Vueling

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Do, 5 Mrz - So, 8 Mrz

08:20 - 14:55OPO-LHR

6h 35m1 stop

20:50 - 08:10LHR-OPO

11h 20m1 stop

£131Multiple Airlines

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So, 14 Dez - Sa, 10 Jan

14:50 - 22:40OPO-LHR

7h 50m1 stop

18:30 - 08:00LHR-OPO

13h 30m1 stop

£132TAP AIR PORTUGAL

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So, 18 Jan - Mo, 26 Jan

12:25 - 18:15OPO-LHR

5h 50m1 stop

09:15 - 16:00LHR-OPO

6h 45m1 stop

£134Iberia

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So, 14 Dez - Do, 15 Jan

08:20 - 14:55OPO-LHR

6h 35m1 stop

11:25 - 20:00LHR-OPO

8h 35m1 stop

£135Iberia

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So, 14 Dez - Sa, 10 Jan

12:25 - 17:15OPO-LHR

4h 50m1 stop

10:45 - 20:00LHR-OPO

9h 15m1 stop

£137Iberia

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So, 14 Dez - So, 11 Jan

12:00 - 21:35OPO-LHR

9h 35m1 stop

13:40 - 22:00LHR-OPO

8h 20m1 stop

£141TAP AIR PORTUGAL

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Fr, 16 Jan - So, 18 Jan

21:55 - 18:00OPO-LHR

20h 05m1 stop

18:50 - 08:10LHR-OPO

13h 20m1 stop

£143Vueling

Find Deal

Di, 2 Dez - Do, 15 Jan

06:00 - 13:50OPO-LHR

7h 50m1 stop

06:30 - 15:25LHR-OPO

8h 55m1 stop

£152KLM

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Mi, 17 Dez - Mi, 31 Dez

11:15 - 16:05OPO-LHR

4h 50m1 stop

06:30 - 15:25LHR-OPO

8h 55m1 stop

£157KLM

Find Deal

Di, 25 Nov - Sa, 6 Dez

Vueling flights from Porto to London Heathrow Airport

Our best Vueling deals on Porto to London Heathrow Airport flight tickets

Vueling

5 Mar

OPO20:05Porto

18h 40m

1 stop

LHR14:45London Heathrow

8 Mar

LHR15:15London Heathrow

16h 40m

1 stop

OPO07:55Porto

£105

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Vueling

2 Dec

OPO21:55Porto

20h 05m

1 stop

LHR18:00London Heathrow

15 Jan

LHR18:50London Heathrow

13h 20m

1 stop

OPO08:10Porto

£143

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Vueling

7 Feb

OPO21:55Porto

11h 15m

1 stop

LHR09:10London Heathrow

11 Feb

LHR09:55London Heathrow

11h 20m

1 stop

OPO21:15Porto

£150

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TAP AIR PORTUGAL flights from Porto to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Porto to London Heathrow Airport flight tickets

TAP AIR PORTUGAL

18 Jan

OPO14:50Porto

7h 50m

1 stop

LHR22:40London Heathrow

26 Jan

LHR18:30London Heathrow

13h 30m

1 stop

OPO08:00Porto

£132

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TAP AIR PORTUGAL

16 Jan

OPO12:00Porto

9h 35m

1 stop

LHR21:35London Heathrow

18 Jan

LHR13:40London Heathrow

8h 20m

1 stop

OPO22:00Porto

£141

Find similar

TAP AIR PORTUGAL

6 Mar

OPO12:00Porto

5h 30m

1 stop

LHR17:30London Heathrow

8 Mar

LHR13:40London Heathrow

5h 15m

1 stop

OPO18:55Porto

£164

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momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

PortoLondon

OPO - LHR

OPOLHR

Porto

Do 5/3

20:05-14:45

1 stop18h 40m

London Heathrow

So 8/3

15:15-07:55

1 stop16h 40m

£105

PortoLondon

OPO - LHR

OPOLHR

Porto

So 14/12

08:20-14:55

1 stop6h 35m

London Heathrow

Sa 10/1

20:50-08:10

1 stop11h 20m

£131

PortoLondon

OPO - LHR

OPOLHR

Porto

So 18/1

14:50-22:40

1 stop7h 50m

London Heathrow

Mo 26/1

18:30-08:00

1 stop13h 30m

£132

PortoLondon

OPO - LHR

OPOLHR

Porto

So 14/12

12:25-18:15

1 stop5h 50m

London Heathrow

Do 15/1

09:15-16:00

1 stop6h 45m

£134

PortoLondon

OPO - LHR

OPOLHR

Porto

So 14/12

08:20-14:55

1 stop6h 35m

London Heathrow

Sa 10/1

11:25-20:00

1 stop8h 35m

£135

PortoLondon

OPO - LHR

OPOLHR

Porto

So 14/12

12:25-17:15

1 stop4h 50m

London Heathrow

So 11/1

10:45-20:00

1 stop9h 15m

£137

PortoLondon

OPO - LHR

OPOLHR

Porto

Fr 16/1

12:00-21:35

1 stop9h 35m

London Heathrow

So 18/1

13:40-22:00

1 stop8h 20m

£141

PortoLondon

OPO - LHR

OPOLHR

Porto

Di 2/12

21:55-18:00

1 stop20h 05m

London Heathrow

Do 15/1

18:50-08:10

1 stop13h 20m

£143

PortoLondon

OPO - LHR

OPOLHR

Porto

Mi 17/12

06:00-13:50

1 stop7h 50m

London Heathrow

Mi 31/12

06:30-15:25

1 stop8h 55m

£152

PortoLondon

OPO - LHR

OPOLHR

Porto

Di 25/11

11:15-16:05

1 stop4h 50m

London Heathrow

Sa 6/12

06:30-15:25

1 stop8h 55m

£157

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How to get the cheapest flight ticket from Porto to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

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

In general, February is the cheapest month to fly from Porto to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £131. The month of June is another great option to travel to London Heathrow Airport, with average flight prices from Porto averaging around £147.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Porto is on a Thursday. momondo users have found tickets for Thursday departures for as low as £182. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Monday is £229.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Porto to London Heathrow Airport in the morning for as low as £122. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £196 on average. Flights to London Heathrow Airport from Porto in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How have Porto to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for Porto to London Heathrow Airport flights are approximately 124% more expensive when compared to flights at the same time last year.

When to book flights from Porto to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Porto to London Heathrow Airport (OPO to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to London Heathrow Airport

Direct flights	None

There are no direct flights from Porto to London Heathrow Airport. There are no popular flight routes from Porto to London Heathrow Airport.

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How far is Porto to London Heathrow by plane?
The distance between Porto and London Heathrow is about 810.6 mi. A reasonable flight in good conditions will take 4h 50m.
When did momondo last update prices for flights from Porto Airport to London Heathrow Airport?
Prices for flights from Porto Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Porto Airport to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Eastbourne

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Gatwick

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Northampton

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Canterbury

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Southend-on-Sea

Ipswich

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Poole

Guildford

Swanage

Dover

Colchester

Chelmsford

Hayes

Why use momondo?

Why should I use momondo to find a flight deal from Porto to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Porto to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Porto to London with flexible booking policies on momondo?

Flights from Porto to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to London?

Once all potential Porto to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Porto to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Porto and alert you when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from Porto to London from £45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to London departing on 13/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

See travel insights to London from

How to get the cheapest flight ticket from Porto to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

How have Porto to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for Porto to London Heathrow Airport flights are approximately 124% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Porto to London Heathrow?

Vueling, Iberia, and British Airways are the most popular carriers operating from Porto to London Heathrow

How often are flights from Porto to London delayed?

Historically, on average around 6% of flights between Porto and London have experienced a delay on any given week. The average delay length over the past 12 months has been 77 minutes.

What is the most punctual flight time for Porto to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

When to book flights from Porto to London Heathrow Airport

Cheap Porto to London Heathrow Airport (OPO to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to London Heathrow Airport

Direct flights

How far is Porto to London Heathrow by plane?

When did momondo last update prices for flights from Porto Airport to London Heathrow Airport?

How old do you have to be to fly from Porto Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

Travelling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Porto to London?

Can I find flights from Porto to London with flexible booking policies on momondo?

How can momondo help me find flights from Porto to London?

I’m not ready to book a flight from Porto to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo