Cheap flights from London to Barcelona from £17

If you aren’t able to travel during the month of November, then book flights to Barcelona from London during January instead. Flights to Barcelona in January, while not as cheap as those in November, still average around £58.

Our data shows that Monday is the least expensive day to fly to Barcelona. Tickets to fly out on this day can be as low as £119. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to Barcelona for around £146.

Flying to Barcelona from London in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as £121 when looking at flights departing in the afternoon. Flights in the morning are often more expensive, with an average ticket price of £138.

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

You are more likely to see cheaper flights to Barcelona from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around £143 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from London for as low as £128 on momondo.

There are 3 cabin classes available to choose from on London to Barcelona 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 London to Barcelona

Vueling, Ryanair and British Airways are the top three most popular airlines that fly to Barcelona from London according to our data. Vueling is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Barcelona. Keep in mind that there are 13 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between London and Barcelona 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 in the evening 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. Friday 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 18% of their flights experiencing any sort of delay.

The number of flights available between London and Barcelona is 41 per day as of April 2026. The most frequent departure time is 09:00, with 47% of daily flights leaving at midday.

The number of flights available between London and Barcelona is 288 per week as of April 2026. The most frequent departure day is Mon, with 26% of weekly flights leaving on this day.