Cheap flights from London Heathrow Airport to Madrid from $66

The month of January is, on average, the cheapest month to fly to Madrid from London Heathrow Airport, with most prices found around $126. If you don’t want to visit Madrid in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $158.

The cheapest day to depart on your flight to Madrid is on a Thursday when prices can be found for as low as $290. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Sunday is $374.

Flying to Madrid from London Heathrow Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $186 when looking at flights departing at noon. Flights to Madrid are more costly in the evening, with an average ticket price of $539. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Madrid Barajas for the best London Heathrow - Madrid Barajas flight prices

You are more likely to see cheaper flights to Madrid from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from London Heathrow Airport for as low as $164 on momondo.

There are 3 cabin classes available to choose from on London Heathrow Airport to Madrid flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

British Airways is the most popular carrier operating from London Heathrow to Madrid Barajas

Iberia, British Airways and easyJet are the top three most popular airlines that fly to Madrid from London Heathrow Airport according to our data. Iberia is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Madrid. Keep in mind that there are 3 different airlines that fly to Madrid on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between London and Madrid have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

As of August 2026, 41 flights take off from London Heathrow Airport and land in Madrid each day. The most common flight departure time for this route is 5:00PM, with 37% of daily flights taking off at noon.

As of August 2026, 290 flights take off from London Heathrow Airport and land in Madrid each week. The most common flight departure day for this route is Fri, with 21% of weekly flights taking off on this day.