Cheap flights from Spain to London from £18

The cheapest month to fly to London from Spain is in November. Flight prices, which tend to average around £52, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Spain averaging around £54.

Our data shows that Saturday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £64. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Spain to London for around £81.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £66. Flights in the afternoon are often more expensive, with an average ticket price of £88.

Fly from Sevilla to London Gatwick 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 £127 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 £111 on momondo.

There are 3 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.

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

Vueling, easyJet and Ryanair are the top three most popular airlines that fly to London from Spain according to our data. Vueling is the first choice among our users, with 28% 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 21% 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 116 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 Express have had the fewest delays on this route over the last 12 months, with about 4% of their flights experiencing any sort of delay.

As of February 2026, there are 126 flights per day flying from Spain to London. The most common time of day flights depart is 15:00, with 47% of flights taking off in the afternoon.

As of February 2026, 887 flights take off from Spain and land in London each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.