LHR - OPO

$83 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 6/14. 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 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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Cheap Flights from Heathrow to Porto

 
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.

Recent round-trip flight deals from Heathrow to Porto

KAYAK's recommended round-trip deals from the most popular airlines that fly from Heathrow to Porto.
Discover the best prices for you by selecting your travel dates on KAYAK.
Logo
3:05 pm - 9:45 pmLHR-OPO
6h 40m1 stop
Logo
6:00 am - 2:15 pmOPO-LHR
8h 15m1 stop
$185
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Tue, Jun 3 - Thu, Jun 12
Logo
8:50 pm - 8:00 amLHR-OPO
11h 10m1 stop
Logo
3:55 pm - 10:25 pmOPO-LHR
6h 30m1 stop
$195
Find Deal
Sat, Jun 14 - Tue, Jun 17
Vueling Logo
8:50 pm - 8:00 amLHR-OPO
11h 10m1 stop
Vueling Logo
10:00 pm - 9:10 amOPO-LHR
11h 10m1 stop
$196Vueling
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Tue, May 27 - Tue, Jun 3
TAP AIR PORTUGAL Logo
6:00 am - 6:55 pmLHR-OPO
12h 55m1 stop
TAP AIR PORTUGAL Logo
4:05 pm - 10:55 pmOPO-LHR
6h 50m1 stop
$211TAP AIR PORTUGAL
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Fri, Sep 26 - Mon, Sep 29
Vueling Logo
8:50 pm - 8:00 amLHR-OPO
11h 10m1 stop
Vueling Logo
10:00 pm - 9:10 amOPO-LHR
11h 10m1 stop
$215Vueling
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Sat, Oct 18 - Tue, Oct 21
TAP AIR PORTUGAL Logo
1:45 pm - 8:25 pmLHR-OPO
6h 40m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 10:55 pmOPO-LHR
4h 55m1 stop
$219TAP AIR PORTUGAL
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Tue, Sep 16 - Wed, Sep 24
KLM Logo
11:45 am - 5:55 pmLHR-OPO
6h 10m1 stop
KLM Logo
6:40 am - 1:50 pmOPO-LHR
7h 10m1 stop
$222KLM
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Tue, Jun 3 - Fri, Jun 20
KLM Logo
11:45 am - 5:55 pmLHR-OPO
6h 10m1 stop
KLM Logo
6:40 am - 1:50 pmOPO-LHR
7h 10m1 stop
$226KLM
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Tue, Jun 24 - Fri, Jun 27
Lufthansa Logo
7:25 am - 11:20 pmLHR-OPO
15h 55m1 stop
Lufthansa Logo
6:15 am - 8:45 pmOPO-LHR
14h 30m1 stop
$239Lufthansa
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Mon, Jun 2 - Wed, Jun 11
Lufthansa Logo
7:25 am - 11:20 pmLHR-OPO
15h 55m1 stop
Lufthansa Logo
6:00 am - 4:40 pmOPO-LHR
10h 40m1 stop
$247Lufthansa
Find Deal
Mon, May 19 - Thu, Jun 5
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 $359 and $352 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 20 weeks before departure.

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Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$83
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 37% 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 $83 for a one-way ticket and $185 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.

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 1851 reviews
7.1Comfort
7.0Boarding
6.3Entertainment
7.8Crew
6.2Food
Airline reviews

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.

2.0 MediocreSuzanne, Mar 2025SVQ - LIS
Read more TAP AIR PORTUGAL reviews

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.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils. I'd originally booked to fly Business Class; those seats didn't look that great either.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils.

First time and I enjoyed the trip…. Will fly again soon 🔜

Delayed flight because other plane was occupying the gate for longer than expected. Once we boarded the plane had to wait 1 hour before taking off. We. Almost lost our connection flight and the baggage didn’t make it. We had to wait two days to receive our luggage. Hope they improve the timing or work with the airport to get better service.

I’m still missing my bags. I’m soo frustrated

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.

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

Information on your arrival and departure airports

Porto (OPO)
London Heathrow Airport (LHR)

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