£56 Find Cheap Flights from London Heathrow Airport to Portugal

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 Portugal departing on 8/12. 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

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Best Portugal Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbondirect£99
Faro
Faro1 stop£116
Porto
Porto1 stop£132
Funchal
Funchal1 stop£177
Ponta Delgada
Ponta Delgada1 stop£174
Porto Santo
Porto Santo1 stop£240
Lajes
Lajes1 stop£205
Horta
Horta1 stop£365
Pico Island
Pico Island3 stops£455
Vila do Porto
Vila do Porto1 stop£383
Lisbon
Lisbondirect£99
Faro
Faro1 stop£116
Porto
Porto1 stop£132
Funchal
Funchal1 stop£177
Ponta Delgada
Ponta Delgada1 stop£174
Porto Santo
Porto Santo1 stop£240
Lajes
Lajes1 stop£205
Horta
Horta1 stop£365
Pico Island
Pico Island3 stops£455
Vila do Porto
Vila do Porto1 stop£383

Cheap Flights from Heathrow to Portugal

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Portugal 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 return flight deals from Heathrow to Portugal

Wed, 10 Dec - Wed, 17 Dec
British Airways Logo
06:55 - 09:50LHR-LIS
2h 55mdirect
British Airways Logo
18:35 - 21:20LIS-LHR
2h 45mdirect
£99British Airways
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Tue, 2 Dec - Thu, 11 Dec
British Airways Logo
06:55 - 09:50LHR-LIS
2h 55mdirect
British Airways Logo
18:35 - 21:20LIS-LHR
2h 45mdirect
£103British Airways
Find Deal
Sun, 21 Sep - Fri, 26 Sep
TAP AIR PORTUGAL Logo
19:50 - 17:20LHR-FAO
21h 30m1 stop
TAP AIR PORTUGAL Logo
06:05 - 22:55FAO-LHR
16h 50m1 stop
£116TAP AIR PORTUGAL
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Tue, 2 Sep - Wed, 10 Sep
TAP AIR PORTUGAL Logo
19:50 - 17:20LHR-FAO
21h 30m1 stop
TAP AIR PORTUGAL Logo
11:15 - 22:55FAO-LHR
11h 40m1 stop
£119TAP AIR PORTUGAL
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Tue, 9 Dec - Sat, 27 Dec
Iberia Logo
10:45 - 20:00LHR-OPO
9h 15m1 stop
Iberia Logo
20:40 - 12:15OPO-LHR
15h 35m1 stop
£147Iberia
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Sat, 11 Oct - Wed, 15 Oct
Iberia Logo
20:00 - 07:35LHR-OPO
11h 35m1 stop
Iberia Logo
22:00 - 09:10OPO-LHR
11h 10m1 stop
£148Iberia
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Tue, 26 Aug - Fri, 19 Sep
SWISS Logo
13:45 - 23:20LHR-LIS
9h 35m1 stop
SWISS Logo
18:10 - 07:55LIS-LHR
13h 45m1 stop
£160SWISS
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Tue, 26 Aug - Mon, 1 Dec
SWISS Logo
06:00 - 23:20LHR-LIS
17h 20m1 stop
SWISS Logo
15:25 - 21:40LIS-LHR
6h 15m1 stop
£161SWISS
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Sat, 28 Jun - Mon, 7 Jul
Brussels Airlines Logo
11:05 - 18:00LHR-FAO
6h 55m1 stop
Brussels Airlines Logo
12:10 - 21:35FAO-LHR
9h 25m1 stop
£171Brussels Airlines
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Sat, 28 Jun - Sat, 5 Jul
Brussels Airlines Logo
07:45 - 18:00LHR-FAO
10h 15m1 stop
Brussels Airlines Logo
12:10 - 21:35FAO-LHR
9h 25m1 stop
£172Brussels Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Heathrow to Portugal flights

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

What is the cheapest London Heathrow Airport to Portugal flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Portugal.

The cheapest ticket to Portugal from London Heathrow Airport found in the last 72 hours was to Lisbon, at £139 return. The most popular route is from London Heathrow Airport (LHR) to Lisbon (LIS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £139.

Can I save money by flying with a stopover from London Heathrow Airport to Portugal?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £412, prices are generally cheapest when you fly direct.

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

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 Portugal, 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 Portugal is January, when tickets cost £124 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is £282 and £254 respectively.

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

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

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

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

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 Portugal, 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 Portugal, you should book around 7 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


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

Low seasonJanuary
High seasonAugust
Cheapest flight£56
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (44% more expensive on average)
Flight from London Heathrow Airport to Lisbon

Flights from Heathrow to Portugal: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Heathrow to Portugal 
ZakFlew with TAP AIR PORTUGALLHR-LISMar 2025
Don't bother with business if you are flying out of LHR before 06:30 as the lounges and fast track security only open at 06:00 so you will not have time to use them. For short haul European flights this is most of the benefit of going business class. Hand luggage only is better with a large rucksack (30-40L) instead of a case with wheels is possible as gate agents will usually check cases with wheels on full flights and your rucksack is less likely to be gate checked.
LiannFlew with British AirwaysLHR-LISAug 2024
Keep liquids altogether because you have to place it in a plastic bag from them
KFlew with TAP AIR PORTUGALLHR-LISApr 2024
Huge queues at Lisbon airport. Literally anywhere. Make sure you leave plenty of time for everything.

FAQs - booking Portugal flights

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

    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 Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Portugal 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 London Heathrow Airport to Portugal?

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

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

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

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally at night, when retur flights cost £381 on average. Morning departures are around 7% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the morning, which is peak travel time and where the average cost of a ticket is £538.

Top 5 airlines serving from Heathrow to Portugal

 
Need help choosing which airline to fly with from Heathrow to Portugal? 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.
7.4
Brussels AirlinesOverall score based on 355 reviews
7.1Comfort
8.0Crew
6.4Food
6.3Entertainment
7.5Boarding
Airline reviews

All great. Very efficient. Good emails that kept us in the know

10.0 ExcellentGrant, May 2025ALC - BRU
Read more Brussels Airlines reviews

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long flight ?

The flight went well, only during the flight from Brussels to Vilnius I would have liked if they had at least given us plain water to drink.

The boarding process would have been better. When people are flying internationally and the airline is a member of Star Alliance they cannot have different rules for carryon baggage. Brussels Airlines made us adjust the weight of our carryons based on their rules even though we were flying international and our next flight was with United which does not have weight restrictions for carryons. That was just ridiculous.

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.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Flight boarded three hours late for no reason other than someone made a huge error in crew scheduling. We missed our connecting flight in Madrid and got zero help from American or Iberian airlines on rebooking. We had to pay for a car to take us to the Madrid train station and pay for train tickets to Santiago. We never used our booked flight to Santiago. American claims I can submit the expenses but they are not obligated to cover them. Very frustrating.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

Its a bus taking you on and off the plane so if you have big luggage … more muscles needed

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

Usual issues with flight delay. Perennial problem of travel by plane.

I didn’t have food and they don’t include entertainment. Not much leg room at all. Staff were great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

charging port did not work, no entertainment system. Other than that the flight was good and safe.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

When Stephen arrived with our wheel chairs - we were in excellent hands! He was such great help with getting our rental car and then reporting our missing luggage. When you are exhausted from traveling for too many hours, he was just what we needed to navigate everything! Give that guy a raise!

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

Gate information deliberately delayed to only one hour B4 flight, lack of info finding gate.

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

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