Cheap flights from London Heathrow Airport to Madrid from €67

In general, January is the cheapest month to fly from London Heathrow Airport to Madrid. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €109. If you are unable to visit Madrid during the month of January, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around €135.

The cheapest day to depart on your flight to Madrid is on a Thursday when prices can be found for as low as €282. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €1,029.

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 €199 when searching weeks before you fly. 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 €112 on momondo.

As of May 2026, prices for London Heathrow Airport to Madrid flights are approximately 34% more expensive when compared to flights at the same time last year.

Historically, on average around 14% 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 105 minutes.

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

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

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of May 2026, there are 59 flights per day flying from London Heathrow Airport to Madrid. The most common time of day flights depart is 17:00, with 39% of flights taking off at midday.

417 flights are operational weekly from London Heathrow Airport to Madrid as of May 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.