OPO - LHR

£37 Find Cheap Flights from Porto to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Heathrow departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to London, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Porto to Heathrow (OPO-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Porto to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Porto to Heathrow

KAYAK's recommended return flight deals from the most popular airlines that fly from Porto to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Vueling Logo
22:00 - 09:10OPO-LHR
11h 10m1 stop
Vueling Logo
15:30 - 20:05LHR-OPO
4h 35m1 stop
£114Vueling
Find Deal
Fri, 23 May - Thu, 29 May
Vueling Logo
20:15 - 14:45OPO-LHR
18h 30m1 stop
Vueling Logo
15:30 - 19:35LHR-OPO
28h 05m1 stop
£128Vueling
Find Deal
Tue, 17 Jun - Mon, 23 Jun
TAP AIR PORTUGAL Logo
16:00 - 22:05OPO-LHR
6h 05m1 stop
TAP AIR PORTUGAL Logo
13:45 - 20:30LHR-OPO
6h 45m1 stop
£139TAP AIR PORTUGAL
Find Deal
Fri, 26 Sep - Mon, 29 Sep
 Logo
06:05 - 18:00OPO-LHR
11h 55m2 stops
 Logo
15:30 - 19:35LHR-OPO
28h 05m1 stop
Tue, 17 Jun - Mon, 23 Jun
 Logo
08:40 - 16:25OPO-LHR
7h 45m1 stop
 Logo
06:00 - 20:25LHR-OPO
14h 25m1 stop
Thu, 12 Jun - Sun, 29 Jun
TAP AIR PORTUGAL Logo
07:00 - 12:45OPO-LHR
5h 45m1 stop
TAP AIR PORTUGAL Logo
11:20 - 19:00LHR-OPO
7h 40m1 stop
£154TAP AIR PORTUGAL
Find Deal
Wed, 1 Oct - Mon, 6 Oct
KLM Logo
18:50 - 07:40OPO-LHR
12h 50m1 stop
KLM Logo
14:45 - 21:15LHR-OPO
6h 30m1 stop
£163KLM
Find Deal
Tue, 17 Jun - Mon, 23 Jun
SWISS Logo
12:15 - 17:50OPO-LHR
5h 35m1 stop
SWISS Logo
20:05 - 07:55LHR-OPO
11h 50m1 stop
£166SWISS
Find Deal
Thu, 22 May - Fri, 30 May
SWISS Logo
19:20 - 07:55OPO-LHR
12h 35m1 stop
SWISS Logo
08:40 - 18:15LHR-OPO
9h 35m1 stop
£169SWISS
Find Deal
Thu, 29 May - Mon, 2 Jun
KLM Logo
06:40 - 13:50OPO-LHR
7h 10m1 stop
KLM Logo
14:45 - 21:15LHR-OPO
6h 30m1 stop
£171KLM
Find Deal
Fri, 20 Jun - Mon, 23 Jun
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KAYAK's insights & trends for Porto to Heathrow flights

Get data-powered insights and trends into flights from Porto to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to London Heathrow Airport?

The average price of all round-trip flights from Porto to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
For Porto to London Heathrow Airport, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from London Heathrow Airport back to Porto, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Porto to London Heathrow Airport is November, where tickets cost £125 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £233 and £213 respectively.

How far in advance should I book a flight from Porto to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Porto to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Porto to London Heathrow Airport, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know - Cheap tickets from Porto to London Heathrow Airport

Low season

February

High season

August

Cheapest flight

£37
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from Porto to London Heathrow Airport

When to book flights from Porto to Heathrow

Are your dates flexible? Find out the best times to travel from Porto to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Porto to London Heathrow Airport flights

  • What is the cheapest flight from Porto to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Porto to London Heathrow Airport was £50 for a one-way ticket and £153 for a return.

  • Which aircraft models fly most regularly from Porto to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Porto to London Heathrow Airport?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Porto and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Porto to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Porto is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Porto with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Porto to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Porto to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
TAP AIR PORTUGALOverall score based on 1851 reviews
7.8Crew
6.2Food
7.0Boarding
7.1Comfort
6.3Entertainment
Airline reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

10.0 ExcellentJanet, Apr 2025LIS - MIA
Read more TAP AIR PORTUGAL reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

TAP boarding gate agents singled out Group A line to gate check all carry on bags …. Supposedly because of lack on bin space. BUT ALL OTHERS WERE PERMITTED WITH CARRY ON BAGS. Additionally so many passengers entering the plane after us were permitted carry on bags. And when the plane was fully loaded, there was a number of open spaces in the overhead bins. I WILL SEARCH OTHER OPTIONS BEFORE FLYING TAP AGAIN

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Worst: long walk to baggage claim Best: left on time

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

Flight delayed by >1 hour. Long boarding involving riding a shuttle to the plane.

When I tried to enter my identity details, your app told me information was missing but did not highlight the missing data. This was frustrating. Also, there was an unexplained delay of about 2 hours in taking off. This was also frustrating. Otherwise the experience was good.

The flight was delayed without any type of notice. After passing through the gate, people were lined up at the passages boarding bridge standing for about half hour with no clue when they can board after ‘boarding’. No explanation or indication of the new departure time. All you can do is standing up and waiting.

Everything you need to know for your flight from Porto to Heathrow

Information on your arrival and departure airports

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