Cheap flights from Spain to London from £20

The cheapest month to fly to London from Spain is in January. Flight prices, which tend to average around £70, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Spain averaging around £76.

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £67. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Spain to London for around £84.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £70. Flights in the afternoon are often more expensive, with an average ticket price of £85.

Fly from Palma de Mallorca Son Sant Joan to London Luton for the best Spain - London flight prices

You are more likely to see cheaper flights to London from Spain when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £129 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Spain for as low as £104 on momondo.

There are 4 cabin classes available to choose from on Spain to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair, easyJet, and Wizz Air are the most popular carriers operating from Spain to London

easyJet, Vueling and Ryanair are the top three most popular airlines that fly to London from Spain according to our data. easyJet is the first choice among our users, with 27% of people opting to fly with this airline when travelling to London. Keep in mind that there are 8 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% of flights between Spain and London have experienced a delay on any given week. The average delay length over the past 12 months has been 122 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. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Iberia have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

As of October 2026, there are 153 flights per day flying from Spain to London. The most common time of day flights depart is 07:00, with 44% of flights taking off in the afternoon.

As of October 2026, 1,074 flights take off from Spain and land in London each week. The most common flight departure day for this route is Sun, with 25% of weekly flights taking off on this day.