Cheap flights from London to Madrid from €40

In general, January is the cheapest month to fly from London to Madrid. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €83. If you are unable to visit Madrid during the month of January, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around €127.

The cheapest day to depart on your flight to Madrid is on a Thursday when prices can be found for as low as €281. 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 because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €1,025.

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

You are more likely to see cheaper flights to Madrid from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around €196 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 for as low as €116 on momondo.

As of May 2026, prices for London to Madrid flights are approximately 31% cheaper when compared to flights at the same time last year.

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 107 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night 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, easyJet have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

The number of flights available between London and Madrid is 75 per day as of May 2026. The most frequent departure time is 17:00, with 43% of daily flights leaving at midday.

As of May 2026, 530 flights take off from London and land in Madrid each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.