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Cheap flights from Porto to London Heathrow Airport from £46

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 Heathrow Airport departing on 6/5. 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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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Porto to London.
Vueling Logo
16:55 - 09:10OPO-LHR
16h 15m1 stop
Vueling Logo
20:50 - 08:00LHR-OPO
11h 10m1 stop
£127Vueling
Find Deal
Fri, 2 May - Tue, 6 May
Vueling Logo
22:00 - 09:10OPO-LHR
11h 10m1 stop
Vueling Logo
20:50 - 08:00LHR-OPO
11h 10m1 stop
£131Vueling
Find Deal
Thu, 1 May - Tue, 6 May
 Logo
22:00 - 09:05OPO-LHR
11h 05m1 stop
 Logo
20:50 - 08:00LHR-OPO
11h 10m1 stop
Fri, 2 May - Sat, 10 May
TAP AIR PORTUGAL Logo
16:00 - 22:55OPO-LHR
6h 55m1 stop
TAP AIR PORTUGAL Logo
08:00 - 15:00LHR-OPO
7h 00m1 stop
£157TAP AIR PORTUGAL
Find Deal
Fri, 2 May - Sun, 18 May
TAP AIR PORTUGAL Logo
16:00 - 22:05OPO-LHR
6h 05m1 stop
TAP AIR PORTUGAL Logo
06:00 - 15:00LHR-OPO
9h 00m1 stop
£158TAP AIR PORTUGAL
Find Deal
Fri, 25 Apr - Sun, 27 Apr
 Logo
21:15 - 10:20OPO-LHR
13h 05m1 stop
 Logo
20:50 - 08:00LHR-OPO
11h 10m1 stop
Mon, 28 Apr - Mon, 5 May
KLM Logo
20:20 - 07:40OPO-LHR
11h 20m1 stop
KLM Logo
11:45 - 19:15LHR-OPO
7h 30m1 stop
£162KLM
Find Deal
Thu, 22 May - Wed, 28 May
KLM Logo
17:30 - 07:40OPO-LHR
14h 10m1 stop
KLM Logo
08:40 - 22:15LHR-OPO
13h 35m1 stop
£171KLM
Find Deal
Mon, 26 May - Sat, 31 May
Lufthansa Logo
06:00 - 20:40OPO-LHR
14h 40m1 stop
Lufthansa Logo
06:55 - 23:20LHR-OPO
16h 25m1 stop
£180Lufthansa
Find Deal
Tue, 29 Apr - Tue, 6 May
Lufthansa Logo
06:15 - 20:45OPO-LHR
14h 30m1 stop
Lufthansa Logo
08:30 - 22:50LHR-OPO
14h 20m1 stop
£181Lufthansa
Find Deal
Fri, 9 May - Mon, 12 May

KLM flights from Porto to London Heathrow Airport

Our best KLM deals on Porto to London Heathrow Airport flight tickets
KLM
22 May
OPO20:20Porto
11h 20m
1 stop
LHR07:40London Heathrow
28 May
LHR11:45London Heathrow
7h 30m
1 stop
OPO19:15Porto
KLM
26 May
OPO17:30Porto
14h 10m
1 stop
LHR07:40London Heathrow
31 May
LHR08:40London Heathrow
13h 35m
1 stop
OPO22:15Porto
KLM
29 May
OPO20:20Porto
11h 20m
1 stop
LHR07:40London Heathrow
2 Jun
LHR08:40London Heathrow
8h 05m
1 stop
OPO16:45Porto

Lufthansa flights from Porto to London Heathrow Airport

Our best Lufthansa deals on Porto to London Heathrow Airport flight tickets
Lufthansa
29 Apr
OPO06:00Porto
14h 40m
1 stop
LHR20:40London Heathrow
6 May
LHR06:55London Heathrow
16h 25m
1 stop
OPO23:20Porto
Lufthansa
9 May
OPO06:15Porto
14h 30m
1 stop
LHR20:45London Heathrow
12 May
LHR08:30London Heathrow
14h 20m
1 stop
OPO22:50Porto
Lufthansa
1 May
OPO06:15Porto
16h 25m
1 stop
LHR22:40London Heathrow
6 May
LHR09:00London Heathrow
14h 20m
1 stop
OPO23:20Porto

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, November 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 February is another great option to travel to London Heathrow Airport, with average flight prices from Porto averaging around £135.

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 Friday. momondo users have found tickets for Friday departures for as low as £0. 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 £232.

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 at midday. momondo users have found flights departing from Porto to London Heathrow Airport at midday for as low as £0. 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 £199 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 far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Porto when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £183 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Porto for as low as £113 on momondo.

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

As of April 2025, 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

Best price found

£46

Fastest flight time

4h 40m

Direct flights

None
The best one-way flight to London Heathrow Airport from Porto in the past 72 hours is £46. The best return flight deal from Porto to London Heathrow Airport found on momondo in the last 72 hours is £127.
The fastest flight from Porto to London Heathrow Airport takes 4h 40m
There are no direct flights from Porto to London Heathrow Airport. Popular non-direct route for this connection is Porto Airport - 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 4h 45m.

  • 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 many operators does momondo search 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?

    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.

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


Best airlines flying from Porto to London Heathrow Airport

Compare and see reviews for airlines that fly from Porto to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom £120Free CancellationRating
7.1
1,831 reviews
Search TAP AIR PORTUGAL flights

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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.


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