Cheap flights from London Heathrow Airport to Madrid from $110

The month of January is, on average, the cheapest month to fly to Madrid from London Heathrow Airport, with most prices found around $184. If you aren’t able to travel during the month of January, then book flights to Madrid from London Heathrow Airport during February instead. Flights to Madrid in February, while not as cheap as those in January, still average around $228.

The cheapest day to depart on your flight to Madrid is on a Saturday when prices can be found for as low as $350. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,372. These prices are subject to change though, so be sure to set up a Price Alert for flights to Madrid.

Flying to Madrid from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $441 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Madrid is in the evening when prices are around $1,781.

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 $340 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 $189 on momondo.

There are 2 cabin classes available to choose from on London Heathrow to Madrid Barajas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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 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 15% of their flights experiencing any sort of delay.

As of April 2026, 54 flights take off from London Heathrow Airport and land in Madrid each day. The most common flight departure time for this route is 17:00, with 38% of daily flights taking off at midday.

The number of flights available between London Heathrow Airport and Madrid is 382 per week as of April 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.