£21 Find Cheap Flights from Spain to London Heathrow Airport

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 14/5. 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.
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KAYAK searches 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
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Flights Deals

Cheap Flight Deals from Spain to Heathrow

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

KAYAK's recommended return flight deals from the most popular airlines that fly from Spain to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Vueling Logo
16:55 - 18:00SCQ-LHR
2h 05mdirect
Vueling Logo
18:50 - 22:05LHR-SCQ
2h 15mdirect
£43Vueling
Find Deal
Wed, 14 May - Sat, 17 May
Vueling Logo
16:55 - 18:00SCQ-LHR
2h 05mdirect
Vueling Logo
18:50 - 22:05LHR-SCQ
2h 15mdirect
£49Vueling
Find Deal
Wed, 4 Jun - Mon, 9 Jun
 Logo
07:45 - 18:00VLC-LHR
11h 15m1 stop
 Logo
18:50 - 07:25LHR-VLC
11h 35m1 stop
Thu, 15 May - Sat, 17 May
Iberia Logo
07:00 - 08:25MAD-LHR
2h 25mdirect
Iberia Logo
19:05 - 22:30LHR-MAD
2h 25mdirect
£75Iberia
Find Deal
Fri, 17 Oct - Tue, 4 Nov
 Logo
08:15 - 18:00ALC-LHR
10h 45m1 stop
 Logo
18:50 - 12:05LHR-ALC
16h 15m1 stop
Tue, 13 May - Mon, 19 May
Iberia Logo
17:45 - 19:10MAD-LHR
2h 25mdirect
Iberia Logo
18:45 - 22:10LHR-MAD
2h 25mdirect
£79Iberia
Find Deal
Sat, 20 Sep - Wed, 24 Sep
British Airways Logo
21:25 - 22:40BCN-LHR
2h 15mdirect
British Airways Logo
06:10 - 09:20LHR-BCN
2h 10mdirect
£89British Airways
Find Deal
Fri, 3 Oct - Tue, 7 Oct
British Airways Logo
21:25 - 22:40BCN-LHR
2h 15mdirect
British Airways Logo
16:40 - 19:55LHR-BCN
2h 15mdirect
£92British Airways
Find Deal
Fri, 3 Oct - Sun, 5 Oct
SWISS Logo
06:40 - 13:00AGP-LHR
7h 20m1 stop
SWISS Logo
17:10 - 00:10LHR-AGP
6h 00m1 stop
£144SWISS
Find Deal
Wed, 21 May - Tue, 3 Jun
SWISS Logo
06:40 - 11:25AGP-LHR
5h 45m1 stop
SWISS Logo
13:45 - 00:10LHR-AGP
9h 25m1 stop
£145SWISS
Find Deal
Tue, 27 May - Tue, 3 Jun
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KAYAK's insights & trends for flights to Heathrow

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 round-trip 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 Santiago de Compostela, at £31 return. The most popular connection is from Madrid to London Heathrow Airport and KAYAK users have found return deals for as low as £75 in the last 3 days.

How much is a flight to London Heathrow Airport?

The average and cheapest price for all round-trip flights to London Heathrow Airport from each origin found by users searching on KAYAK in the last month.
A flight to London Heathrow Airport costs £135 on average. The cheapest price found on KAYAK in the last 2 weeks cost £14 and departed from Santiago de Compostela. The most popular routes on KAYAK are Madrid to London Heathrow Airport which costs £165 on average, and Barcelona to London Heathrow Airport, which costs £91 on average.
See prices from:

What is the cheapest day to fly to London?

The average price of all round-trip 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 Wednesday where round-trip tickets can be as cheap as £145. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £196 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 November, where tickets cost £91 on average for return flights. On the other hand, the most expensive months are June and April, where the average cost of tickets from Spain is £159 and £157 respectively. For one-way flights, the best month to travel is November with an average price of £76.

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

The average price for all round-trip 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 at night, when round-trip flights cost £108 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £259.

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 Santiago de Compostela £14 return, from Valencia £42 return, from Málaga £47 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

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

Low season

February

High season

December

Cheapest flight

£21
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 15% lower on average.
Flight from Santiago de Compostela to London Heathrow Airport

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

Insights shared by verified travellers who flew the route from Spain to Heathrow 
JarrodFlew with British AirwaysIBZ-LHRJul 2024
Give your self time with a connecting flight at LHR. You need to go through security again even with a connection.
OmarFlew with British AirwaysBCN-LHRMay 2024
Have own entertainment and battery to charge your phone

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 Santiago de Compostela, at £31 return. The most popular connection is from Madrid to London Heathrow Airport and KAYAK users have found return deals for as low as £75 in the last 3 days.

  • How far is London Heathrow Airport from central London?

    The distance between London Heathrow Airport and the city centre of London is 14 miles.

  • How much is a flight to London?

    On average, a flight to London costs £135. The cheapest price found on KAYAK in the last 2 weeks cost £14 and departed from Santiago de Compostela 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.

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

    Each week there are around 358 direct flights from within Spain to London Heathrow Airport. The most common day for departures is Tuesday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found round-trip tickets to London Heathrow Airport for the following prices or less: Cheap flights to London Heathrow Airport from Ibiza £106, from Madrid £378, from Málaga £393
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Top 3 airlines serving from Spain 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 Spain 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
VuelingOverall score based on 1159 reviews
6.8Comfort
6.1Food
5.8Entertainment
7.6Crew
7.1Boarding
Airline reviews

My luggage got lost and until today there is no solution to the problem. It's still missing

2.0 MediocreDavid, Oct 2024BCN - ORY
Read more Vueling reviews

My luggage got lost and until today there is no solution to the problem. It's still missing

I am writing to demand an immediate refund and compensation for the absolutely unacceptable experience I endured with VUELING this week. On Monday, my flight was canceled, and despite this, I have yet to receive any refund. I was then taken to a hotel in a terrible location, where no food or even water was provided. The next day, I was rebooked on another flight, for which I had to personally cover an additional €50 in transportation costs—only to have that flight canceled as well. After waiting 10 hours, only 10 of us were offered alternative accommodations, while the rest were left stranded. We were forced to remain in this situation until Thursday without a single explanation or proper assistance. During this entire ordeal, we were only provided with breakfast and dinner, while being charged extra for drinks. This level of treatment is completely unacceptable. I expect an immediate refund for the cancelled flights and full compensation for the inconvenience, additional expenses, and the significant distress caused.

Only food for sale. Did not even offer water. No entertainment

Checking was efficient and quick. Adequate luggage space. Food for purchase only at high prices

Nothing. There was no flight. They cancelled the flight with no replacement about 9 hours before takeoff.

The flight was canceled at the last minute. Alternative flight was booked after 6 hours wait in Malaga airport.

Boarding with some sense and communication. It was a total free-for-all everyone coming all at once, no organisation of row numbers or priority.

Horrible, flight cancelled and had to come back the next day

Terrible. For clarity - this was the Level flight to Boston. Not Vueling. Would urge customers to avoid this airline. Gate agent was singularly unhelpful. He was argumentative, rude and went out of his way to ensure that every penny was collected for the baggage (which we realized given how early we were for flight we could have saved hundreds of dollars if we checked in on app). No onboard entertainment or WiFi. Half of the front section was empty because the seats did not work! Plane was falling apart.

No complimentary snacks, but I think that’s a standard in the USA. There were loud drunk Germans sitting in front of us.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

Very good service from San Jose to Madrid . Ryanair service from Madrid to Brussels 😕

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

I wish they could put the pre-tsa check on the tickets or global entry.

Couldn’t keep my luggage and had no choice. Ground staff didn’t even bother to explain why.

very good all round. staff, food, entertainment, punctuality all very good

We upgraded to Business class paying approx. $1,300. Despite the upgrade, we were still required to pay an additional €70 for a checked bag. Furthermore, we were informed that another €70 would have been charged for our carry-on bag, as it was 3kg over the limit. To avoid this, we had to move clothing from the carry-on into the checked bag, which was both inconvenient and frustrating. Given the significant amount paid for the Business Class upgrade, we found this treatment to be quite appalling and disappointing. We expected a higher level of service and consideration for our luggage, and this experience did not meet those expectations.

The cabin crew were great very helpful and accommodating. We had a fellow passenger throw up next to us. The flight crew did an amazing job cleaning up and reseating us. We did question as to if he should have been let on the flight as his condition was likely self imposed.

Great flight, short and good attention. Didn't took any food so can't say thing about it

Boarding was delayed and we had to get on buses to plane so group # didn't matter. No food or drinks served gratis. Seats were small, knees smashed into the seat ahead, didn't recline. Crew was excellent though.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Our original booking with Kayak -our first experience -was exactly what we wanted and worked well. Updates were friendly and reassuring as were the contacts with UnderPricer so a big win-win. We learned a lot on your reliability and will definitely put you on our organisational list for the future.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

Plane and seats ok. Dinners going and coming back were not fantastic. Breakfast from Seattle to London fine with bagel, cheese and fried egg. Second meal on London to Seattle not my favorite of kind of pizza sauce in a pastry. Came with water about three different times on each of my long flights. Staff on all very friendly and helpful.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
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Winchester
Croydon
Slough
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Poole
Chichester
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Salisbury
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Chelmsford
Hastings

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

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