Find flights
Insights
When to book
FAQs & Tips
Direct Flights
Airlines
Deals

Find cheap flights from Portugal to London Heathrow Airport from £46

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 12/6. 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
0 bags
Sat 1/6
Sat 8/6

Search 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 for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights to Heathrow - Travel Insights & Trends

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

What is the cheapest flight to London Heathrow Airport?

These are the best prices found by users searching on KAYAK in the last 72 hours.
In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Faro, at £36 one-way and £61 return. The most popular connection is from Lisbon to London Heathrow Airport and KAYAK users have found return deals for as low as £76 in the last 3 days.

What is the cheapest day to fly to London?

The average price of all flights to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to London is Tuesday where tickets can be as cheap as £147. On the other hand, the most expensive day to fly is Sunday, where prices are £224 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London Heathrow Airport is January, where tickets cost £100 on average for one-way flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Portugal is £218 and £217 respectively. For return trips, the best month to travel is January with an average price of £100.

What is the cheapest time of day to fly to London Heathrow Airport?

The average price for all flights to London Heathrow Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to London Heathrow Airport is generally in the afternoon, when flights cost £111 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is £179.

What is a good deal for flights to London Heathrow Airport?

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Lisbon £102 one-way - £112 return, from Faro £152 one-way - £548 return, from Funchal £238 one-way - £303 return.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 72 days before departure.

Which airline offers the most flights to London Heathrow Airport?

Of the 2 airlines that fly to London Heathrow Airport, British Airways offers the most flights, with around 355 per week, followed by Loganair with 31 flights per week.

How long is the flight to London Heathrow Airport?

The duration of your flight to London depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to London on KAYAK are from Lisbon, which takes 2h 40m, Faro, which takes 2h 45m, Funchal, which takes 3h 40m, and Ponta Delgada, which takes 3h 50m.

How many direct flights to London Heathrow Airport are there each day?

There are around 56 direct flights from within Portugal to London Heathrow Airport every day. Most flights depart in the morning, with 10:00 the most common departure time and 50% of flights departing in the morning.

How many direct flights to London Heathrow Airport are there each week?

Each week there are around 386 direct flights from within Portugal to London Heathrow Airport. The most common day for departures is Tuesday, with 16% of flights taking off on this day.

How many long-haul flights are there to London Heathrow Airport each week?

There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to London Heathrow Airport. Instead, there are 102 short-haul flights (up to 3 hour flight duration), with the most arriving from Lisbon.

How many cities have direct flights to London Heathrow Airport?

From Portugal, there are direct flights to London Heathrow Airport from 4 cities. The city with the most direct flights is Lisbon, with 79 direct flights each week.

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

Low season

July

High season

December

Cheapest flight

£46
Best time to beat the crowds but there is an average 41% increase in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Faro to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Faro, at £36 one-way and £61 return. The most popular connection is from Lisbon to London Heathrow Airport and KAYAK users have found return deals for as low as £76 in the last 3 days.

  • How far is London Heathrow Airport from central London?

    The city centre of London is 14 miles from London.

  • How much is a flight to London?

    On average, a flight to London costs £184. The cheapest price found on KAYAK in the last 2 weeks cost £62 and departed from Lisbon Humberto Delgado Airport.

  • How does KAYAK find such low prices on flights 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 to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to London Heathrow Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Prefer to fly direct to London Heathrow?

Find which airlines fly direct to Heathrow, which days they fly and book direct flights.

Direct departures

Portugal to London Heathrow

Monday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights

Direct returns

London Heathrow to Portugal

Monday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights
See more direct flights

Top 4 airlines serving from Portugal to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 2176 reviews
6.3Food
7.7Crew
6.5Entertainment
7.1Comfort
6.9Boarding
Airline reviews

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

6.0 GoodAnonymous, Apr 2024LIS - MAD
Read more about TAP AIR PORTUGAL reviews

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

I wish to bring to your attention an incident involving a flight attendant that occurred on my recent journey. The attendant displayed a lack of courtesy, which was concerning. For instance, after accidentally spilling water on a passenger, the attendant dismissed the situation rather than offering a proper apology. Additionally, when I handed over my trash, the attendant reacted negatively because I placed a paper cup on the tray, she told me this doesn't go here and threw it back on my table. It was apparent that she was experiencing a challenging day, which unfortunately impacted the service provided to myself and other passengers. While I understand that everyone can have an off day, it is essential for customer-facing staff to seek support to manage personal stress without it affecting their professional responsibilities.

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

Very agressive with bags both arrival and departures found minor damage to my luggage including my check bag being broken into nothing of value was in there so I do not believe anything was taken but definitely broken zipper into the outer pockets of suitcase

Everything was nearly perfect, and TAP staff were especially helpful when we missed our connecting flights and had to get on the next flight to Rome. The only aspect that could have been better was boarding: it was somewhat disorganized, which created a bit of stress. But in the end, everyone got on the plane, so the less-then-perfect boarding process did not take away from the overall excellent experience.

TAP Air makes you take a bus on arrival or departure, making it difficult for passengers to make connections.

Two of three flight attendants were not super kind as I would expect. The very kind young lady in my section was wonderful but then lady and man up front were not. Sorry but it makes a difference !

Great staff who were ready working with smile 6 in the morning on New Year’s Day. Although security checkpoint was way too busy, the airline staff were understanding and waited few minutes after boarding. We took off not only exactly on time, but arrived 20 minutes early. Two thumbs up!!!

I needed to add "Special Request" meal for myself and my trveling companion,and I ended up having to call their Customer Service. It took a while to get through but eventually I connected with a very proffessional and nice representative who took my request. In the middle of the conversation we were disconnected , as I was trying to all back, the TAP representative actually called me back and confirmed the special request for meals....he called me back from Portugal ! I was absolutely amazed,because that does not happen here in the USA. Perhaps some of the other airlines can learn from TAP's Customer Service. TAP's website at times can be difficult ,such as adding my TSA number. Ended up having it added at the TAP desk at the airport.

Not great! Rude staff in London and the worse baggage reclaim I’ve ever seen. Great staff in flight but doubt I’ll fly with them again

You booked my 7 year old son to sit on his own without his mum and dad in s separate row between two unfriendly adult strangers. The plane was disgusting and dirty, aisles and everywhere sticky. The lounge waiting area was filthy carpet and had insufficient seats so we had to sit on it to wait for 35 minutes and my 7 year old sone played on this filthy lounge carpet. The outside of the plane appeared clean. The pilot was helpful with the route and what to expect weather etc.

The seat leg room seemed much tighter on the way home My cheese toasty wasn’t that hot - didn’t realise till half eaten

The flight boarded a little late but made up the time in flight - much appreciated. The staff were efficient and fairly friendly One of the toilets wasn’t working - having only one functioning toilet for a flight of hundreds isn’t really acceptable. I still find it amazing that the budget airlines can’t even offer free tap water to passengers.

Plane out was great, one back was cramped. Awful. Thankfully great crew!

Cons: "Delayed flight, once on board the aircraft, further delays on the ground (at Glasgow) made up time in the air landed (not too far from our original landing time) only to be told we’re now being held on the ground (at Gatwick for at least another 20 minutes!) I flew with BA this morning and rated them excellent for everything! EJ you need to up your game!"
Pros: "On time, smooth and professional"
Cons: "Nothing - the best part of this flight is that is so short :)"
Cons: "From terminal to terminal... the worst airlines and experience. Flight delayed, crew unprofessional and boarding horrible."
Cons: "check in was a nightmare it took over an hour of being pushed without anyone controlling the queue"
Cons: "Flight was delayed ridiculously and were not informed of what time it was delayed to until shortly before departure. Been told due to fog but other flights were leaving in the meantime!"

Food not so good. Need more veggies and whole grain especially the late food. Couldn’t figure out how to use the entertainment system.

Check in was horrendous! Economy took 2 hours before seeing an agent. Business class was 0.5 - 1 hour.

The first class flight itself was first class, however getting to the airport and getting through the airport was agony. The BA flight sat on the taxiway for ages and caused us to miss our connecting flight which meant half a day lost. Our return flight on BA was cancelled so a dawn flight was made and we lost another half day. Goodby BA

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

There was some delay at Heathrow where a machine needed to "start the engines" wasn't available and they couldn't even find the team tasked to do it. Unacceptable. Caused about an hour delay and seemed unnecessary. Also saw several passengers abusing the overhead luggage situation, having too many large bags and not leaving enough space for others. The crew was good and the refreshments were good in quality and quantity.

They cancelled our ticket, gave us no warning, they reissued it 4 days prior to trip and it was cancelled again when we got to the airport- very stressful, the flight was overbooked so they drove us across Milan to malpensa

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Some how I got “offloaded” even though I had my boarding pass Food was horrible Staff were nice and cheerful No headphones were provided

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

The flight was delayed 5 hours and I'm and invalid,I wan a refund for this

The cabin crew on that flight were super fantastic and super helpful. They were so polite and considerate that i felt i travelled with a 5star airline.

Delayed delayed delayed - always with Wizzair. Staff were friendly and well mannered but clearly the company is unorganized and the aircrafts are outdated.

It's a budget airline. Great for short flight. Smooth landing.

4 hr delay and only told less than 2hrs before. Only given water and nuts on the flight as complimentary service. Left to wait in rain before boarding.

To be honest I did not like anything. Communication to why my flight was cancelled mid air 2 and half hours into my flight. Customer service desk were not helpful with providing information or a solution on what can be done.

I have been treated unacceptably by WizzAir aircraft crew in a previous flight, they threatened me and abused me, and I received an OFFICIAL written apology, but only two (2) months later. This flight had no such unacceptable behaviour, but it's not nice to be left waiting in the walkway (from gate to aircraft) for a long time, just so that the 'boarding' appears to be early, even if actual departure is not.

What I liked new airplane Sitting was extremely uncomfortable! Crew not smiley at all Always chewing gum

The flight was cancelled just 4 hours before the take off...

No food on board. Not comfortable. Had to move seats was delayed more than 3 hours.

Book cheap flights from Portugal to London

Recent return flight deals

 
These are the cheapest return flights to London found on KAYAK in the last 72 hours.
12/10Sat
directTAP AIR PORTUGAL
2h 40mLIS-LHR
15/10Tue
directTAP AIR PORTUGAL
2h 40mLHR-LIS
£76
22/5Wed
directTAP AIR PORTUGAL
2h 40mLIS-LHR
29/5Wed
directTAP AIR PORTUGAL
2h 50mLHR-LIS
£94
12/6Wed
1 stop
11h 15mLIS-LHR
17/6Mon
2 stops
22h 35mLHR-LIS
£137
11/5Sat
directBritish Airways
2h 45mFAO-LHR
12/5Sun
directBritish Airways
2h 55mLHR-FAO
£138
11/5Sat
directBritish Airways
2h 45mFAO-LHR
12/5Sun
directBritish Airways
2h 55mLHR-FAO
£148
17/10Thu
1 stop
15h 25mLIS-LHR
20/10Sun
2 stops
27h 50mLHR-LIS
£149
15/5Wed
1 stopVueling
11h 20mOPO-LHR
18/5Sat
1 stopVueling
11h 10mLHR-OPO
£150
14/6Fri
1 stopIberia
5h 50mOPO-LHR
17/6Mon
1 stopIberia
15h 45mLHR-OPO
£155
14/5Tue
1 stopVueling
21h 50mOPO-LHR
18/5Sat
1 stopVueling
11h 10mLHR-OPO
£157
23/5Thu
1 stopIberia
12h 00mLIS-LHR
28/5Tue
1 stopIberia
6h 15mLHR-LIS
£180

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to London found on KAYAK in the last 72 hours.
12/6Wed
1 stopVueling
15h 30mFAO-LHR
£46
14/10Mon
directTAP AIR PORTUGAL
2h 40mLIS-LHR
£48
10/7Wed
1 stop
5h 25mLIS-LHR
£49
26/6Wed
1 stop
4h 45mFAO-LHR
£50
10/5Fri
directBritish Airways
2h 45mFAO-LHR
£51
22/10Tue
1 stopIberia
9h 00mOPO-LHR
£53
17/5Fri
directBritish Airways
2h 45mFAO-LHR
£54
10/10Thu
1 stopIberia
11h 05mOPO-LHR
£58
5/6Wed
1 stopKLM
14h 15mLIS-LHR
£88
16/6Sun
1 stopKLM
13h 30mLIS-LHR
£89

Search by stops

Search by airline

Search by price

Last minute flights to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to London that are departing in the next 10 days.
2/5Thu
multi-stopTAP AIR PORTUGAL
16h 50mFAO-LHR
5/6Wed
multi-stopTAP AIR PORTUGAL
21h 30mLHR-FAO
£129
4/5Sat
multi-stop
4h 45mFAO-LHR
5/5Sun
direct
2h 55mLHR-FAO
£143
7/5Tue
multi-stopVueling
11h 40mOPO-LHR
14/5Tue
multi-stopVueling
11h 10mLHR-OPO
£155
4/5Sat
directBritish Airways
2h 45mFAO-LHR
5/5Sun
directBritish Airways
2h 55mLHR-FAO
£189
2/5Thu
directBritish Airways
2h 45mFAO-LHR
5/6Wed
directBritish Airways
2h 55mLHR-FAO
£194
3/5Fri
multi-stopAir France
12h 55mLIS-LHR
8/5Wed
multi-stopAir France
13h 05mLHR-LIS
£195
7/5Tue
multi-stopVueling
11h 40mOPO-LHR
15/5Wed
multi-stopVueling
11h 10mLHR-OPO
£202
3/5Fri
multi-stopAir France
12h 55mLIS-LHR
8/5Wed
multi-stopAir France
13h 05mLHR-LIS
£205
7/5Tue
multi-stopSWISS
7h 05mLIS-LHR
21/5Tue
multi-stopSWISS
6h 45mLHR-LIS
£218
6/5Mon
multi-stopSWISS
12h 40mOPO-LHR
13/5Mon
multi-stopSWISS
11h 50mLHR-OPO
£231

Search by stops

Search by airline

Search by price

Flights to London Heathrow Airport

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Portugal

Cabin classes:

£1,042
£1,186
£81