LHR - OPO

$89 Find Cheap Flights from London Heathrow Airport to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Porto departing on 10/12. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

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

Cheap Flights from Heathrow to Porto (LHR-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Porto 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Porto

Sun, Sep 14 - Sun, Sep 21
TAP AIR PORTUGAL Logo
4:35 pm - 11:15 pmLHR-OPO
6h 40m1 stop
TAP AIR PORTUGAL Logo
5:05 am - 10:20 amOPO-LHR
5h 15m1 stop
$211TAP AIR PORTUGAL
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Tue, Sep 16 - Wed, Sep 24
TAP AIR PORTUGAL Logo
1:45 pm - 7:00 pmLHR-OPO
5h 15m1 stop
TAP AIR PORTUGAL Logo
11:00 am - 5:45 pmOPO-LHR
6h 45m1 stop
$212TAP AIR PORTUGAL
Find Deal
Wed, Aug 27 - Sat, Sep 6
Brussels Airlines Logo
11:05 am - 4:00 pmLHR-OPO
4h 55m1 stop
Brussels Airlines Logo
10:10 am - 8:55 pmOPO-LHR
10h 45m1 stop
$251Brussels Airlines
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Wed, Aug 27 - Sat, Sep 6
Brussels Airlines Logo
7:45 am - 4:00 pmLHR-OPO
8h 15m1 stop
Brussels Airlines Logo
10:10 am - 9:35 pmOPO-LHR
11h 25m1 stop
$252Brussels Airlines
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Thu, Sep 18 - Fri, Sep 26
SWISS Logo
7:00 am - 1:45 pmLHR-OPO
6h 45m1 stop
SWISS Logo
7:55 pm - 8:15 amOPO-LHR
12h 20m1 stop
$286SWISS
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Thu, Sep 18 - Tue, Sep 30
SWISS Logo
7:00 am - 1:45 pmLHR-OPO
6h 45m1 stop
SWISS Logo
6:15 pm - 8:15 amOPO-LHR
14h 00m1 stop
$288SWISS
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Mon, Sep 15 - Sat, Sep 20
Logo
6:00 am - 7:20 pmLHR-OPO
13h 20m2 stops
Logo
10:10 am - 8:55 pmOPO-LHR
10h 45m1 stop
$291
Find Deal
Fri, Sep 12 - Tue, Sep 16
Logo
8:40 am - 7:10 pmLHR-OPO
10h 30m2 stops
Logo
4:00 pm - 10:55 pmOPO-LHR
6h 55m1 stop
$293
Find Deal
Thu, Dec 18 - Wed, Dec 31
Lufthansa Logo
7:30 am - 3:25 pmLHR-OPO
7h 55m1 stop
Lufthansa Logo
1:45 pm - 9:00 pmOPO-LHR
7h 15m1 stop
$311Lufthansa
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Sun, Sep 7 - Thu, Sep 11
Lufthansa Logo
7:30 am - 11:20 pmLHR-OPO
15h 50m2 stops
Lufthansa Logo
6:00 am - 10:10 pmOPO-LHR
16h 10m1 stop
$325Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Heathrow to Porto flights

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

How much is a round-trip flight from London Heathrow Airport to Porto?

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

The average price of all round-trip flights from London Heathrow Airport to Porto clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Porto on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from London Heathrow Airport to Porto. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Porto, 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 London Heathrow Airport to Porto is January, where tickets cost $194 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $381 and $364 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Porto, 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 London Heathrow Airport to Porto, you should book around 5 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

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Good to know

Low seasonJanuary
Cheapest flight$89
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 36% increase in price.
Flight from London Heathrow Airport to Porto

When to book flights from Heathrow to Porto

Are your dates flexible? Find out the best times to travel from Heathrow to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 London Heathrow Airport to Porto flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Porto was $89 for a one-way ticket and $211 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Porto?

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Porto.

  • Which airports will I be using when flying from London Heathrow Airport to Porto?

    London Heathrow Airport airport is called London Heathrow and the only airport in Porto is Porto.

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

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

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

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

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

    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 London Heathrow Airport to Porto.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and OPO can sometimes prove cheaper using this method.

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

    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 Porto from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Heathrow to Porto

 
See real verified KAYAK customer reviews for airlines flying from London to Porto. 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 Heathrow to Porto? 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 1942 reviews
7.1Comfort
6.2Food
7.8Crew
7.0Boarding
6.3Entertainment
Airline reviews

A good, comfortable flight with friendly crew and good entertainment options.

10.0 ExcellentTy, Aug 2025GVA - LIS
Read more TAP AIR PORTUGAL reviews

A good, comfortable flight with friendly crew and good entertainment options.

Very rude person at the boarding desk; flight attendant coughing 3 inches from my face three times- not even covering her mouth; boarding process very unacceptable for older people with stairs to all planes (are you all stuck in the 1960’s?). I am sure that I am not remembering all of the negative things, but I am sure you get the message!

There was chaos at the Naples airport. We arrived three hours early for the flight but there was no invitation available about where to go to check bags until an hour later. Then we had to go to a different terminal to check our bags and check in and back to the first to board.

We flew TAP last October from Newark to Lisbon. The meal was bad. This flight had good food. Also, this flight was delayed. There were TAP employees waiting at Lisbon to make sure we made our connecting flight. I find the TAP website and app frustrating, but the service once we reached the airport was very good

The airport temperature at the airport and on the flight was too warm

Boarding too way too long. Biggest peeve: zero in-seat power in economy! No plug sockets, no USB ports. Plane was an A330, so not old.

boarding is so disorganized, i was literally appalled at the boarding experience

Comfortable but not Polaris or Delta comfort Business Class. Overall 7 out of 10

Tap air Portugal was the best I will traveling again with u guys. Thank u.

The long wait at JFK made the trip horrible. Also not having enough buses when we deplaned was annoying

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Porto (OPO)

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