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Cheap flights from Porto to London from £52

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 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Porto to London

Cheap return flights

Enter your travel dates to find the best prices.
Vueling Logo
20:15 - 14:45
OPO
-
LHR
18h 30m
1 stop
Vueling Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£104Vueling
Tue, 21 Apr - Wed, 22 Apr
Vueling Logo
21:55 - 09:10
OPO
-
LHR
11h 15m
1 stop
Vueling Logo
20:50 - 08:10
LHR
-
OPO
11h 20m
1 stop
£114Vueling
Tue, 10 Mar - Tue, 17 Mar
Vueling Logo
08:45 - 09:10
OPO
-
LHR
24h 25m
1 stop
Vueling Logo
20:50 - 08:10
LHR
-
OPO
11h 20m
1 stop
£121Vueling
Tue, 17 Mar - Tue, 24 Mar
Vueling Logo
22:00 - 20:05
OPO
-
LHR
22h 05m
1 stop
Vueling Logo
09:55 - 16:10
LHR
-
OPO
6h 15m
1 stop
£122Vueling
Thu, 16 Apr - Sat, 18 Apr
TAP AIR PORTUGAL Logo
06:55 - 12:40
OPO
-
LHR
5h 45m
1 stop
TAP AIR PORTUGAL Logo
18:30 - 00:30
LHR
-
OPO
6h 00m
1 stop
£126TAP AIR PORTUGAL
Wed, 25 Feb - Sat, 28 Feb
TAP AIR PORTUGAL Logo
12:00 - 17:30
OPO
-
LHR
5h 30m
1 stop
TAP AIR PORTUGAL Logo
13:40 - 18:55
LHR
-
OPO
5h 15m
1 stop
£127TAP AIR PORTUGAL
Fri, 13 Mar - Sun, 15 Mar
TAP AIR PORTUGAL Logo
15:55 - 21:35
OPO
-
LHR
5h 40m
1 stop
TAP AIR PORTUGAL Logo
13:40 - 18:55
LHR
-
OPO
5h 15m
1 stop
£128TAP AIR PORTUGAL
Fri, 6 Mar - Sun, 8 Mar
Vueling Logo
21:55 - 09:10
OPO
-
LHR
11h 15m
1 stop
Vueling Logo
20:50 - 08:10
LHR
-
OPO
11h 20m
1 stop
£129Vueling
Wed, 11 Mar - Sat, 14 Mar
TAP AIR PORTUGAL Logo
06:55 - 12:40
OPO
-
LHR
5h 45m
1 stop
TAP AIR PORTUGAL Logo
06:00 - 14:00
LHR
-
OPO
8h 00m
1 stop
£130TAP AIR PORTUGAL
Wed, 11 Mar - Sun, 15 Mar
Vueling Logo
21:55 - 09:10
OPO
-
LHR
11h 15m
1 stop
Vueling Logo
20:50 - 08:10
LHR
-
OPO
11h 20m
1 stop
£131Vueling
Wed, 25 Feb - Tue, 3 Mar

Vueling flights from Porto to London Heathrow Airport

Our best Vueling deals on Porto to London Heathrow Airport flight tickets
Vueling
21 Apr
OPO20:15Porto
18h 30m
1 stop
LHR14:45London Heathrow
22 Apr
LHR20:50London Heathrow
11h 10m
1 stop
OPO08:00Porto
£104
Vueling
10 Mar
OPO21:55Porto
11h 15m
1 stop
LHR09:10London Heathrow
17 Mar
LHR20:50London Heathrow
11h 20m
1 stop
OPO08:10Porto
£114
Vueling
17 Mar
OPO08:45Porto
24h 25m
1 stop
LHR09:10London Heathrow
24 Mar
LHR20:50London Heathrow
11h 20m
1 stop
OPO08:10Porto
£121

Lufthansa flights from Porto to London Heathrow Airport

Our best Lufthansa deals on Porto to London Heathrow Airport flight tickets
Lufthansa
24 Feb
OPO13:45Porto
7h 15m
1 stop
LHR21:00London Heathrow
3 Mar
LHR06:35London Heathrow
6h 15m
1 stop
OPO12:50Porto
£134
Lufthansa
26 Feb
OPO14:05Porto
6h 55m
1 stop
LHR21:00London Heathrow
28 Feb
LHR17:50London Heathrow
5h 50m
1 stop
OPO23:40Porto
£135
Lufthansa
26 Feb
OPO14:05Porto
6h 55m
1 stop
LHR21:00London Heathrow
3 Mar
LHR06:35London Heathrow
6h 15m
1 stop
OPO12:50Porto
£136

momondo Fare Finder

 
Customise your flight search to find flights from Porto to London Heathrow Airport 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 2 February 2026.
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

Tue 21/4

20:15-14:45

1 stop18h 30m

London Heathrow

Wed 22/4

20:50-08:00

1 stop11h 10m

£104

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 10/3

21:55-09:10

1 stop11h 15m

London Heathrow

Tue 17/3

20:50-08:10

1 stop11h 20m

£114

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 17/3

08:45-09:10

1 stop24h 25m

London Heathrow

Tue 24/3

20:50-08:10

1 stop11h 20m

£121

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 16/4

22:00-20:05

1 stop22h 05m

London Heathrow

Sat 18/4

09:55-16:10

1 stop6h 15m

£122

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 25/2

06:55-12:40

1 stop5h 45m

London Heathrow

Sat 28/2

18:30-00:30

1 stop6h 00m

£126

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 13/3

12:00-17:30

1 stop5h 30m

London Heathrow

Sun 15/3

13:40-18:55

1 stop5h 15m

£127

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 6/3

15:55-21:35

1 stop5h 40m

London Heathrow

Sun 8/3

13:40-18:55

1 stop5h 15m

£128

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 11/3

21:55-09:10

1 stop11h 15m

London Heathrow

Sat 14/3

20:50-08:10

1 stop11h 20m

£129

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 11/3

06:55-12:40

1 stop5h 45m

London Heathrow

Sun 15/3

06:00-14:00

1 stop8h 00m

£130

PortoLondon

OPO - LHR

OPOLHR

Porto

Wed 25/2

21:55-09:10

1 stop11h 15m

London Heathrow

Tue 3/3

20:50-08:10

1 stop11h 20m

£131

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

In general, March 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 £130. The month of June is another great option to travel to London Heathrow Airport, with average flight prices from Porto averaging around £138.

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

As of February 2026, prices for Porto to London Heathrow Airport flights are approximately 18% cheaper 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

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from Porto to London Heathrow Airport takes 5h 15m
There are no direct flights from Porto to London Heathrow Airport. There are no popular flight routes from Porto to London Heathrow Airport.
Search flight deals

  • 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 5h 15m.

  • 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.

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
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Chelmsford
Hayes
Dover
Swanage
Folkestone

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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