Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Porto to London from £47

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 15/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Porto to London

Cheap return flights

Enter your travel dates to find the best prices.
Vueling Logo
21:55 - 09:10
OPO
-
LHR
11h 15m
1 stop
Vueling Logo
20:50 - 08:10
LHR
-
OPO
11h 20m
1 stop
£123Vueling
Sat, 21 Nov - Sat, 28 Nov
Vueling Logo
21:55 - 09:10
OPO
-
LHR
11h 15m
1 stop
Vueling Logo
20:50 - 13:55
LHR
-
OPO
17h 05m
1 stop
£127Vueling
Sat, 21 Nov - Tue, 24 Nov
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£128Iberia
Thu, 6 Aug - Mon, 24 Aug
Iberia Logo
20:40 - 18:50
OPO
-
LHR
22h 10m
1 stop
Iberia Logo
19:40 - 07:40
LHR
-
OPO
12h 00m
1 stop
£130Iberia
Fri, 6 Nov - Mon, 9 Nov
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£131Iberia
Thu, 6 Aug - Tue, 18 Aug
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£132Iberia
Thu, 6 Aug - Tue, 18 Aug
Iberia Logo
22:00 - 20:05
OPO
-
LHR
22h 05m
1 stop
Iberia Logo
20:50 - 13:05
LHR
-
OPO
16h 15m
1 stop
£133Iberia
Tue, 6 Oct - Fri, 23 Oct
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£135Iberia
Thu, 6 Aug - Tue, 18 Aug
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£136Iberia
Thu, 6 Aug - Tue, 25 Aug
Iberia Logo
22:00 - 09:10
OPO
-
LHR
11h 10m
1 stop
Iberia Logo
20:50 - 08:00
LHR
-
OPO
11h 10m
1 stop
£137Iberia
Thu, 6 Aug - Tue, 25 Aug

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Iberia flights from Porto to London Heathrow Airport

Our best Iberia deals on Porto to London Heathrow Airport flight tickets
Iberia
6 Aug
OPO22:00Porto
11h 10m
1 stop
LHR09:10London Heathrow
24 Aug
LHR20:50London Heathrow
11h 10m
1 stop
OPO08:00Porto
£128
Iberia
6 Nov
OPO20:40Porto
22h 10m
1 stop
LHR18:50London Heathrow
9 Nov
LHR19:40London Heathrow
12h 00m
1 stop
OPO07:40Porto
£130
Iberia
6 Aug
OPO22:00Porto
11h 10m
1 stop
LHR09:10London Heathrow
18 Aug
LHR20:50London Heathrow
11h 10m
1 stop
OPO08:00Porto
£131

Vueling flights from Porto to London Heathrow Airport

Our best Vueling deals on Porto to London Heathrow Airport flight tickets
Vueling
21 Nov
OPO21:55Porto
11h 15m
1 stop
LHR09:10London Heathrow
28 Nov
LHR20:50London Heathrow
11h 20m
1 stop
OPO08:10Porto
£123
Vueling
21 Nov
OPO21:55Porto
11h 15m
1 stop
LHR09:10London Heathrow
24 Nov
LHR20:50London Heathrow
17h 05m
1 stop
OPO13:55Porto
£127
Vueling
22 Sept
OPO22:00Porto
11h 10m
1 stop
LHR09:10London Heathrow
25 Sept
LHR20:50London Heathrow
11h 10m
1 stop
OPO08:00Porto
£138

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 28 June 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

Cheapest return flight

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 21/11

21:55-09:10

1 stop11h 15m

London Heathrow

Sat 28/11

20:50-08:10

1 stop11h 20m

£123

PortoLondon

OPO - LHR

OPOLHR

Porto

Sat 21/11

21:55-09:10

1 stop11h 15m

London Heathrow

Tue 24/11

20:50-13:55

1 stop17h 05m

£127
Fastest return journey

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Mon 24/8

20:50-08:00

1 stop11h 10m

£128

PortoLondon

OPO - LHR

OPOLHR

Porto

Fri 6/11

20:40-18:50

1 stop22h 10m

London Heathrow

Mon 9/11

19:40-07:40

1 stop12h 00m

£130

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 18/8

20:50-08:00

1 stop11h 10m

£131

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 18/8

20:50-08:00

1 stop11h 10m

£132

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 6/10

22:00-20:05

1 stop22h 05m

London Heathrow

Fri 23/10

20:50-13:05

1 stop16h 15m

£133

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 18/8

20:50-08:00

1 stop11h 10m

£135

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 25/8

20:50-08:00

1 stop11h 10m

£136

PortoLondon

OPO - LHR

OPOLHR

Porto

Thu 6/8

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 25/8

20:50-08:00

1 stop11h 10m

£137

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

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 £98. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Porto averaging around £166.

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

As of June 2026, prices for Porto to London Heathrow Airport flights are approximately 54% 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

Fastest flight time

5h 35m

Direct flights

None
The fastest flight from Porto to London Heathrow Airport takes 5h 35m
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

Frequently asked questions about flying from Porto to London Heathrow Airport

  • 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 35m.

  • 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
Wembley
Gatwick
Milton Keynes
Luton
Stratford-upon-Avon
Southend-on-Sea
Slough
Northampton
Maidstone
Ipswich
Swindon
Ilford
Canterbury
Folkestone
Poole
Guildford
Hayes
Chichester
Hastings

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 28/7
Tue 4/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London