LHR - OPO

$86 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 9/2. 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

Tue, Jul 15 - Tue, Jul 22
Vueling Logo
8:50 pm - 8:00 amLHR-OPO
11h 10m1 stop
Vueling Logo
10:00 pm - 9:10 amOPO-LHR
11h 10m1 stop
$176Vueling
Find Deal
Wed, Sep 17 - Wed, Sep 24
Vueling Logo
8:50 pm - 8:00 amLHR-OPO
11h 10m1 stop
Vueling Logo
10:00 pm - 9:10 amOPO-LHR
11h 10m1 stop
$177Vueling
Find Deal
Mon, Jul 14 - Mon, Jul 21
 Logo
8:50 pm - 7:00 amLHR-OPO
10h 10m1 stop
 Logo
6:50 pm - 9:10 amOPO-LHR
14h 20m1 stop
Tue, Jul 8 - Thu, Jul 24
 Logo
8:50 pm - 6:45 amLHR-OPO
9h 55m1 stop
 Logo
7:25 am - 2:15 pmOPO-LHR
6h 50m1 stop
Tue, Sep 16 - Wed, Sep 24
TAP AIR PORTUGAL Logo
7:50 pm - 9:00 amLHR-OPO
13h 10m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 10:55 pmOPO-LHR
4h 55m1 stop
$219TAP AIR PORTUGAL
Find Deal
Tue, Sep 16 - Tue, Sep 23
TAP AIR PORTUGAL Logo
7:50 pm - 9:00 amLHR-OPO
13h 10m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 10:55 pmOPO-LHR
4h 55m1 stop
$227TAP AIR PORTUGAL
Find Deal
Mon, Oct 13 - Wed, Oct 22
Lufthansa Logo
6:55 am - 11:20 pmLHR-OPO
16h 25m1 stop
Lufthansa Logo
6:15 am - 7:40 pmOPO-LHR
13h 25m1 stop
$242Lufthansa
Find Deal
Tue, Oct 21 - Sun, Nov 16
Lufthansa Logo
4:25 pm - 11:20 pmLHR-OPO
6h 55m1 stop
Lufthansa Logo
6:00 am - 12:50 pmOPO-LHR
6h 50m1 stop
$250Lufthansa
Find Deal
Wed, Jul 2 - Thu, Jul 10
KLM Logo
2:45 pm - 10:15 pmLHR-OPO
7h 30m1 stop
KLM Logo
11:25 am - 7:25 pmOPO-LHR
8h 00m1 stop
$269KLM
Find Deal
Thu, Jul 10 - Sat, Jul 12
KLM Logo
5:10 pm - 10:15 pmLHR-OPO
5h 05m1 stop
KLM Logo
11:25 am - 5:50 pmOPO-LHR
6h 25m1 stop
$300KLM
Find Deal
Useful Info

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.

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 $376 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. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$86
Best time to beat the crowds with an average 30% 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 $86 for a one-way ticket and $176 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?

    oneworld, Star Alliance, and SkyTeam 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 1895 reviews
6.2Food
7.8Crew
7.1Comfort
7.0Boarding
6.3Entertainment
Airline reviews

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

8.0 ExcellentMarc, Jun 2025LAX - LIS
Read more TAP AIR PORTUGAL reviews

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

I’ve never had worse food in business class ever!

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

First, communication was terrible. The gate on our ticket was not what was reflected on the airport screens and TAP personnel were not present at either gate to answer questions. The flight was delayed and there was no announcement. Also, there was an equipment swap to a smaller airframe which affected our level of comfort. The root of all these issues was as a lack of communication. With air travel in foreign countries already being a stressful affair, lack of communication needlessly raises the level of difficulty.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Do you have a bad service And And treat customers terrible

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Little leg room in business. I am tall and could use more.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

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

Information on your arrival and departure airports

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