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Cheap flights from Porto to London from £43

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 23/12. 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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Cheap return flights

Enter your travel dates to find the best prices.
Ryanair Logo
10:00 - 12:25OPO-STN
2h 25mdirect
Ryanair Logo
05:55 - 08:20STN-OPO
2h 25mdirect
£55Ryanair
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Sun, 18 Jan - Mon, 26 Jan
easyJet Logo
10:15 - 12:40OPO-LTN
2h 25mdirect
easyJet Logo
13:15 - 15:40LTN-OPO
2h 25mdirect
£57easyJet
Find Deal
Thu, 15 Jan - Sun, 18 Jan
Ryanair Logo
17:45 - 20:10OPO-STN
2h 25mdirect
Ryanair Logo
06:00 - 08:25STN-OPO
2h 25mdirect
£57Ryanair
Find Deal
Mon, 22 Dec - Fri, 2 Jan
easyJet Logo
12:35 - 14:55OPO-LGW
2h 20mdirect
easyJet Logo
09:35 - 12:05LGW-OPO
2h 30mdirect
£61easyJet
Find Deal
Wed, 28 Jan - Mon, 2 Feb
Vueling Logo
20:05 - 14:45OPO-LHR
18h 40m1 stop
Vueling Logo
15:15 - 07:55LHR-OPO
16h 40m1 stop
£123Vueling
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Thu, 15 Jan - Sun, 18 Jan
TAP AIR PORTUGAL Logo
10:55 - 17:30OPO-LHR
6h 35m1 stop
TAP AIR PORTUGAL Logo
08:15 - 15:00LHR-OPO
6h 45m1 stop
£136TAP AIR PORTUGAL
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Wed, 28 Jan - Tue, 3 Feb
Vueling Logo
08:45 - 18:00OPO-LHR
9h 15m1 stop
Vueling Logo
18:50 - 08:10LHR-OPO
13h 20m1 stop
£142Vueling
Find Deal
Wed, 28 Jan - Mon, 2 Feb
TAP AIR PORTUGAL Logo
12:00 - 17:30OPO-LHR
5h 30m1 stop
TAP AIR PORTUGAL Logo
13:40 - 19:00LHR-OPO
5h 20m1 stop
£145TAP AIR PORTUGAL
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Fri, 16 Jan - Mon, 19 Jan
KLM Logo
06:00 - 13:50OPO-LHR
7h 50m1 stop
KLM Logo
17:05 - 22:25LHR-OPO
5h 20m1 stop
£152KLM
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Wed, 17 Dec - Wed, 31 Dec
KLM Logo
06:30 - 13:50OPO-LHR
7h 20m1 stop
KLM Logo
20:25 - 10:30LHR-OPO
14h 05m1 stop
£155KLM
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Fri, 13 Mar - Mon, 16 Mar

TAP AIR PORTUGAL flights from Porto to London

Our best TAP AIR PORTUGAL deals on Porto to London flight tickets
TAP AIR PORTUGAL
28 Jan
OPO10:55Porto
6h 35m
1 stop
LHR17:30London Heathrow
3 Feb
LHR08:15London Heathrow
6h 45m
1 stop
OPO15:00Porto
£136
Find similar
TAP AIR PORTUGAL
16 Jan
OPO12:00Porto
5h 30m
1 stop
LHR17:30London Heathrow
19 Jan
LHR13:40London Heathrow
5h 20m
1 stop
OPO19:00Porto
£145
Find similar
TAP AIR PORTUGAL
5 Nov
OPO06:55Porto
8h 50m
1 stop
LGW15:45London Gatwick
9 Nov
LGW09:05London Gatwick
2h 25m
OPO11:30Porto
£176
Find similar

KLM flights from Porto to London

Our best KLM deals on Porto to London flight tickets
KLM
17 Dec
OPO06:00Porto
7h 50m
1 stop
LHR13:50London Heathrow
31 Dec
LHR17:05London Heathrow
5h 20m
1 stop
OPO22:25Porto
£152
Find similar
KLM
13 Mar
OPO06:30Porto
7h 20m
1 stop
LHR13:50London Heathrow
16 Mar
LHR20:25London Heathrow
14h 05m
1 stop
OPO10:30Porto
£155
Find similar
KLM
11 Nov
OPO09:55Porto
6h 40m
1 stop
LCY16:35London City
15 Nov
LCY08:40London City
6h 45m
1 stop
OPO15:25Porto
£248
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momondo Fare Finder

 
Customise your flight search to find flights from Porto to London 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, momondo users made 279,928 searches. Data last updated 30 October 2025.
Use the filters below to find and compare flights from Porto to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoLondon

OPO - STN

OPOSTN

Porto

Sun 18/1

10:00-12:25

Nonstop2h 25m

London Stansted

Mon 26/1

05:55-08:20

Nonstop2h 25m

£55

PortoLondon

OPO - LTN

OPOLTN

Porto

Thu 15/1

10:15-12:40

Nonstop2h 25m

London Luton

Sun 18/1

13:15-15:40

Nonstop2h 25m

£57

PortoLondon

OPO - STN

OPOSTN

Porto

Mon 22/12

17:45-20:10

Nonstop2h 25m

London Stansted

Fri 2/1

06:00-08:25

Nonstop2h 25m

£57

PortoLondon

OPO - LGW

OPOLGW

Porto

Wed 28/1

12:35-14:55

Nonstop2h 20m

London Gatwick

Mon 2/2

09:35-12:05

Nonstop2h 30m

£60

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 15/1

20:05-14:45

1 stop18h 40m

London Heathrow

Sun 18/1

15:15-07:55

1 stop16h 40m

£123

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 28/1

10:55-17:30

1 stop6h 35m

London Heathrow

Tue 3/2

08:15-15:00

1 stop6h 45m

£136

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 28/1

08:45-18:00

1 stop9h 15m

London Heathrow

Mon 2/2

18:50-08:10

1 stop13h 20m

£142

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 16/1

12:00-17:30

1 stop5h 30m

London Heathrow

Mon 19/1

13:40-19:00

1 stop5h 20m

£145

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 17/12

06:00-13:50

1 stop7h 50m

London Heathrow

Wed 31/12

17:05-22:25

1 stop5h 20m

£152

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 13/3

06:30-13:50

1 stop7h 20m

London Heathrow

Mon 16/3

20:25-10:30

1 stop14h 05m

£155

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Porto to London

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 typical price of a round-trip flight between Porto and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Porto is in February. Flight prices, which tend to average around £66, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Porto averaging around £67.

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

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £81. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Porto to London for around £122.

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

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £60. Flights in the afternoon are often more expensive, with an average ticket price of £122.

What is the cheapest Porto to London flight route?

Fly from Porto to London Stansted for the best Porto - London flight prices

What cabin class options are available on Porto to London flights?

There are 3 cabin classes available to choose from on Porto to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Porto to London flights?

No. A direct flight is the cheapest option for a flight between Porto to London.

How have Porto to London flight prices changed over time?

As of October 2025, prices for Porto to London flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Porto to London

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

Cheap Porto to London (OPO to LON) flight deals and tips

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

Best price found

£46

Fastest flight time

2h 15m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Porto in the past 72 hours is £46. The best return flight deal from Porto to London found on momondo in the last 72 hours is £58.
The fastest flight from Porto to London takes 2h 15m
Direct flights go from Porto to London every day.
There is 1 airport near London: London Gatwick (LGW)
Search flight deals

  • How far is Porto to London by plane?

    The distance between Porto and London is about 819.8 mi. Typically, this will take 2h 15m by plane in normal conditions.

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

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

  • How many operators does momondo search for flights from Porto Airport to London?

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

    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.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Porto to London?

  • What is the most popular airline from Porto to London?

Best airlines flying from Porto to London

Compare and see reviews for airlines that fly from Porto to London with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £48Free CancellationRating
6.8
5,187 reviews
Search Ryanair flights
easyJetPriceFrom £59Free CancellationRating
6.9
1,840 reviews
Search easyJet flights
TAP AIR PORTUGALPriceFrom £93Free CancellationRating
7.1
2,035 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom £95Free CancellationRating
6.7
7,487 reviews
Search British Airways flights

  • TAP AIR PORTUGAL Flights From Porto to London

    The lowest priced TAP AIR PORTUGAL flight from Porto to London from the last 72 hours was £93. Generally, TAP AIR PORTUGAL has 2 flights on this route every week with an average price of £207. TAP AIR PORTUGAL is rated 7.1/10 by our users.

  • easyJet Flights From Porto to London

    easyJet is also a popular choice for this route. easyJet flight deals for Porto to London start from as low as £59 round-trip, depending on your selected dates, with average easyJet deals seen on momondo around £121. easyJet operates 2 flights to London from Porto in an average week. Users have rated it 6.9/10 across 1,840 reviews.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Ramsgate
Bedford
Stansted

Why use momondo?

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

It is quick and easy to find Porto to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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?

momondo helps you find the best flight between Porto and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Porto to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport