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Cheap flights from Madrid, Spain to London Heathrow Airport from C$ 100

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — LHR
3 Aug — 10 Aug1
1 adult

Cheapflights Tip: The best prices from Madrid Barajas to London Heathrow are usually found in November or March, booked 62 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap 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 29 July 2025.

Round-trip from

C$ 171

One-way from

C$ 100

Popular in

April

Cheapest in

November

Average price

C$ 416

Good one-way deal

C$ 252 or less
British Airways
  • British Airways
  • 14/11-16/11
  • Nonstop
  • 4h 50m total
  • Madrid to London
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23/1
  • 23/1
  • 1 total stop
  • 8h 20m total
  • Madrid to London
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Highest demand for flights based on searches. 10% potential increase in price (C$ 53 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Madrid Barajas to London Heathrow.
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Find flight deals from Madrid to Heathrow

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 29 July 2025.

Fri 14/119:20 p.m.MAD - LHR
Nonstop2h 20mBritish Airways
Sun 16/118:25 a.m.LHR - MAD
Nonstop2h 30mBritish Airways
Deal found 29/7C$ 171
Sat 15/117:25 a.m.MAD - LHR
1 stop8h 20mMultiple Airlines
Wed 19/113:30 p.m.LHR - MAD
1 stop6h 15mMultiple Airlines
Deal found 28/7C$ 196

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 29 July 2025.
Use the filters below to find and compare flights from Madrid to London Heathrow Airport that are best for you.

Fly from

Madrid

Fly to

Heathrow

Route

Depart

Return

Price

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 14/11

9:20 p.m.-10:40 p.m.

Nonstop2h 20m

London Heathrow

Sun 16/11

8:25 a.m.-11:55 a.m.

Nonstop2h 30m

C$ 171

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Sat 15/11

7:25 a.m.-2:45 p.m.

1 stop8h 20m

London Heathrow

Wed 19/11

3:30 p.m.-10:45 p.m.

1 stop6h 15m

C$ 196

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 23/1

7:25 a.m.-2:45 p.m.

1 stop8h 20m

C$ 100

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 3/10

8:10 p.m.-10:20 a.m.

1 stop15h 10m

C$ 134

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Mon 29/12

6:05 p.m.-7:25 p.m.

Nonstop2h 20m

C$ 137

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Tue 23/12

6:00 a.m.-10:45 a.m.

1 stop5h 45m

C$ 143

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Sat 9/8

10:30 a.m.-12:30 p.m.

1 stop27h 00m

C$ 148

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Fri 5/9

8:55 p.m.-9:35 p.m.

1 stop25h 40m

C$ 151

MadridLondon

MAD - LHR

MADLHR

Madrid Barajas

Tue 12/8

7:25 a.m.-2:45 p.m.

1 stop8h 20m

C$ 182

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

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 round-trip 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 round-trip flight from Madrid to Heathrow. Price data was last updated on 25 July 2025.

The price you pay for your flight from Madrid to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Madrid to London Heathrow Airport (average of C$ 560). Flying from Madrid to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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 29 July 2025.

When flying from Madrid to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 49% versus a flight in the morning.

Weekly flight availability from Madrid to London Heathrow Airport

Explore weekly flight availability from Madrid to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 July 2025.

The most flights from MAD to LHR are scheduled on a Friday (59 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (41 on average).

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 29 July 2025.
Check out reviews from past customers who have flown with KLM,Brussels Airlines, andVueling 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.
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,383 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Brussels Airlines
7.3
Good
350 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Vueling
7.1
Good
1,175 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
TAP AIR PORTUGAL
7.1
Good
1,929 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.6
Okay
7,208 reviews
KLM
7.8
Good
1,383 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    If you book a flight to London Heathrow from Madrid, you will be flying from Barajas, which is the city’s only airport. Madrid Barajas (MAD) is located 13.6 km from the centre of Madrid. There are 50 flights from Barajas to London Heathrow per day from 0 different airlines.

  • What is the cheapest airline to fly from Madrid to London Heathrow Airport round-trip?

    Currently priced at C$ 171, British Airways will fly you from Madrid to London Heathrow Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Users have found that British Airways is 46% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at C$ 134. British Airways flights start at C$ 137 while deals on KLM start at C$ 143 one-way.

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

    The top 3 most reliable airlines when flying from Madrid to London Heathrow Airport are Iberia (81%), British Airways (81%) and Vueling (81%).

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

    The cheapest flight price from Madrid to London Heathrow Airport is C$ 139. On average you can expect to pay C$ 498. The most popular route, (Madrid Barajas - London Heathrow), can usually be booked for C$ 277.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Madrid to London Heathrow Airport (average of C$ 560). Flying from Madrid to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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
Brentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bromley
Luton
Bedford
Southall

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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

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