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Cheap flights from Madrid, Spain to London Heathrow Airport from £31

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/3. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — LHR
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Madrid Barajas to London Heathrow are usually found in February or January, booked 64 days in advance, depart on a Wednesday or Saturday and return on a Sunday

Cheap flight deals from Madrid to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Madrid to Heathrow
Explore the most affordable flight options available from Madrid to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 March 2026.

Sat 14/309:05
MAD
-
LHR
Nonstop2h 30m
Iberia
Wed 18/311:25
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 12/3£72
Fri 3/721:00
MAD
-
LHR
Nonstop2h 15m
British Airways
Mon 6/707:50
LHR
-
MAD
Nonstop2h 25m
British Airways
Deal found 11/3£75
Thu 26/1113:25
MAD
-
LHR
Nonstop2h 30m
Iberia
Mon 30/1109:15
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 9/3£76
Mon 10/821:00
MAD
-
LHR
Nonstop2h 15m
British Airways
Thu 13/807:50
LHR
-
MAD
Nonstop2h 25m
British Airways
Deal found 13/3£78
Sat 19/917:45
MAD
-
LHR
Nonstop2h 25m
Iberia
Sat 3/1018:45
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 13/3£79
Wed 25/307:40
MAD
-
LHR
Nonstop2h 35m
Iberia
Tue 31/311:30
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 14/3£80
Sat 19/917:45
MAD
-
LHR
Nonstop2h 25m
Iberia
Fri 2/1020:00
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 13/3£81
Fri 20/319:25
MAD
-
LHR
Nonstop2h 20m
British Airways
Sun 22/308:25
LHR
-
MAD
Nonstop2h 30m
British Airways
Deal found 11/3£81
Thu 17/907:00
MAD
-
LHR
Nonstop2h 25m
Iberia
Tue 29/920:00
LHR
-
MAD
Nonstop2h 25m
Iberia
Deal found 13/3£83
Thu 8/1021:00
MAD
-
LHR
Nonstop2h 15m
British Airways
Tue 20/1006:15
LHR
-
MAD
Nonstop2h 25m
British Airways
Deal found 10/3£84
Thu 11/621:00
MAD
-
LHR
Nonstop2h 15m
British Airways
Thu 18/606:15
LHR
-
MAD
Nonstop2h 25m
British Airways
Deal found 12/3£84
Thu 4/617:30
MAD
-
LHR
Nonstop2h 25m
British Airways
Sun 7/606:15
LHR
-
MAD
Nonstop2h 25m
British Airways
Deal found 13/3£85

Find flight deals from Madrid to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 March 2026.

Round-trip from

£75

One-way from

£31

Popular in

May

Cheapest in

February

Average price

£172

Good round-trip deal

£96 or less

Good one-way deal

£61 or less
British Airways
  • British Airways
  • 3/7-6/7
  • Nonstop
  • 4h 40m total
  • Madrid to London
Search Deals
Iberia
  • Iberia
  • 21/3
  • Nonstop
  • 2h 30m total
  • Madrid to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Madrid Barajas to London Heathrow.
Search Deals
Price to beat on a one-way flight from Madrid Barajas to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Madrid to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 March 2026.
Use the filters below to find and compare flights from Madrid to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Tue 16/6

18:25-19:45

Nonstop2h 20m

London Heathrow

Tue 23/6

12:20-15:50

Nonstop2h 30m

£94

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Mon 6/7

17:30-18:55

Nonstop2h 25m

London Heathrow

Thu 9/7

06:15-09:40

Nonstop2h 25m

£96
Fastest return journey

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Mon 11/5

21:00-22:15

Nonstop2h 15m

London Heathrow

Wed 13/5

06:15-09:40

Nonstop2h 25m

£96

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Sat 25/4

21:00-22:15

Nonstop2h 15m

London Heathrow

Tue 28/4

06:15-09:40

Nonstop2h 25m

£106

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Tue 12/5

21:00-22:15

Nonstop2h 15m

London Heathrow

Tue 26/5

20:00-23:25

Nonstop2h 25m

£107

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 8/5

18:25-19:45

Nonstop2h 20m

London Heathrow

Tue 12/5

06:15-09:40

Nonstop2h 25m

£123

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Sun 19/7

21:00-22:15

Nonstop2h 15m

London Heathrow

Thu 23/7

07:50-11:15

Nonstop2h 25m

£124

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Thu 16/4

07:25-14:45

1 stop8h 20m

London Heathrow

Tue 21/4

15:30-22:45

1 stop6h 15m

£151

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 17/4

07:25-14:45

1 stop8h 20m

London Heathrow

Tue 21/4

15:30-22:45

1 stop6h 15m

£166

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 10/7

21:00-22:15

Nonstop2h 15m

London Heathrow

Sun 12/7

14:40-18:10

Nonstop2h 30m

£169

Flights are sorted by cheapest return flights first.

Deals found on 14/3

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Madrid to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Madrid with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Madrid to London Heathrow Airport

How far ahead should I book a flight from Madrid to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Madrid to Heathrow. Price data was last updated on 6 March 2026.

To ensure you get the cheapest price possible for a flight from Madrid to London Heathrow Airport, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Madrid to London Heathrow Airport?

Currently, December is the cheapest month in which you can book a flight from Madrid to London Heathrow Airport (average of £76). Flying from Madrid to London Heathrow Airport in August is currently the most expensive (average of £106). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MAD to LHR?

Find hourly flight availability from Madrid to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 March 2026.

It’s optimal to fly from Madrid to London Heathrow Airport in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Madrid to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Madrid to Heathrow. Price data was last updated on 12 March 2026.

Travellers seeking maximum savings on their Madrid to London Heathrow Airport flight should consider departing on Monday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from Madrid to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 14 March 2026.
Check out reviews from past customers who have flown with Iberia and British Airways from Madrid to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Iberia
7.0
Good
3,135 reviews
Check prices

Comfort

6.8

Overall

7.0

Boarding

7.1

Entertainment

6.6

Food

6.4

Crew

7.7

Reviews

1 / 20
10.0
Excellent

Sylvie,Dec 2025

MAD - DSS

No space ,no confortable, and not organised at all àd very tiring and I booked my seat in advance
Iberia
7.0
Good
3,135 reviews
Iberia
7.0
Good
3,135 reviews
Check prices

Comfort

6.8

Overall

7.0

Boarding

7.1

Entertainment

6.6

Food

6.4

Crew

7.7

Reviews

1 / 20
10.0
Excellent

Sylvie,Dec 2025

MAD - DSS

No space ,no confortable, and not organised at all àd very tiring and I booked my seat in advance
British Airways
6.7
Okay
7,786 reviews
Iberia
7.0
Good
3,135 reviews
Check prices

Comfort

6.8

Overall

7.0

Boarding

7.1

Entertainment

6.6

Food

6.4

Crew

7.7

Reviews

1 / 20
10.0
Excellent

Sylvie,Dec 2025

MAD - DSS

No space ,no confortable, and not organised at all àd very tiring and I booked my seat in advance

Related info for your journey

Find useful and relevant information for your journey from Madrid to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Madrid to London Heathrow?

    Madrid Barajas (MAD) is the airport you will fly out of if you book a flight from Madrid to London Heathrow. You should not have trouble finding flights to London Heathrow from Barajas; the airport handles an average of 61 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Madrid airport to London Heathrow. It is only a 8.5 mi journey to Barajas (MAD) from Madrid’s city center.

  • How long is the flight from Madrid to London Heathrow Airport?

    Airlines like British Airways fly from Madrid to London Heathrow Airport in about 2h 15m. The time it takes to get you to your destination is usually consistent. Madrid and London Heathrow Airport are separated by a distance of 773 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Madrid to London Heathrow Airport round-trip?

    British Airways, at £86, was found to be the cheapest airline from Madrid to London Heathrow Airport. An alternate airline flying to your destination would be Iberia. You may be able to fly from Madrid to London Heathrow Airport for 49% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Madrid to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £36 on Iberia. Other airlines that offer cheap prices include British Airways from £55 and KLM from £74 one-way.

  • What are the most reliable airlines from Madrid to London Heathrow Airport?

    Consider Iberia (81%), British Airways (81%) or Qatar Airways (80%) when booking your flight. These represent the most reliable airlines when flying from Madrid to London Heathrow Airport.

  • What are the cheapest flights from Madrid to London Heathrow Airport?

    Looking for the cheapest flight from Madrid to London Heathrow Airport? While on average our users pay £304, our data indicates the cheapest price to be £38. The most popular route (Madrid Barajas - London Heathrow), is priced around £78.

  • Can I find deals for flights from Madrid to Heathrow that include hotel bookings?

    Yes. In addition to deals on Madrid to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Madrid to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Madrid to Heathrow.

  • Can I find deals for business class flights from Madrid to Heathrow?

    Yes. Cheapflights offers flight deals from Madrid to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Madrid to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Madrid to London Heathrow Airport (average of £76). Flying from Madrid to London Heathrow Airport in August is currently the most expensive (average of £106). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Swindon
Bedford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Madrid to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Madrid to Gatwick flights
Madrid to Stansted flights
Madrid to London City flights
Madrid to Luton flights
Madrid to Southend flights

Top 2 airlines flying from Madrid to Heathrow

Discover the top 2 airlines that operate flights from Madrid to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£86Average£176FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£95Average£215FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Madrid to Heathrow?

When you search for this flight from Madrid to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Madrid to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Madrid.

Can Cheapflights find flights from Madrid to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Madrid to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Madrid to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Madrid today and book when prices fit your budget.

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