Cheap flights from Barcelona to London from £18

The cheapest month to fly to London from Barcelona is in November. Flight prices, which tend to average around £65, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Barcelona averaging around £65.

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 £69. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Barcelona to London for around £85.

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 £89.

Fly from Barcelona-El Prat to London Stansted for the best Barcelona - London flight prices

You are more likely to see cheaper flights to London from Barcelona 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 Barcelona for as low as £106 on momondo.

There are 4 cabin classes available to choose from on Barcelona 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 Vueling are the most popular carriers operating from Barcelona to London

Vueling, British Airways and Ryanair are the top three most popular airlines that fly to London from Barcelona according to our data. Vueling is the first choice among our users, with 47% of people opting to fly with this airline when travelling to London. Keep in mind that there are 5 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Barcelona and London have experienced a delay on any given week. The average delay length over the past 12 months has been 124 minutes.

Generally, flights departing in the morning 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Vueling 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 October 2026, there are 29 flights per day flying from Barcelona to London. The most common time of day flights depart is 10:00, with 38% of flights taking off in the afternoon.

204 flights are operational weekly from Barcelona to London as of October 2026. The most popular departure day for this route is Thu, with 34% of flights per week taking off on this day.