Cheap flights from London to Barcelona from $50

In general, November is the cheapest month to fly from London to Barcelona-El Prat Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $147. If you aren’t able to travel during the month of November, then book flights to Barcelona-El Prat Airport from London during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in November, still average around $147.

Our data shows that Wednesday is the least expensive day to fly to Barcelona-El Prat Airport. Tickets to fly out on this day can be as low as $158. The most expensive day to fly to Barcelona-El Prat Airport is Saturday, with ticket prices averaging around $298.

Our most recent data shows that the best time of day to fly to Barcelona-El Prat Airport is at midday. Flights from London to Barcelona-El Prat Airport during this time can be as low as $183. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $240 on average. Flights to Barcelona-El Prat Airport from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $269 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from London for as low as $217 on momondo.

There is only 1 cabin class available to choose from on London to Barcelona-El Prat Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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 121 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways 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-El Prat Airport is 16 per day as of November 2026. The most frequent departure time is 19:00, with 44% of daily flights leaving at midday.

The number of flights available between London and Barcelona-El Prat Airport is 116 per week as of November 2026. The most frequent departure day is Mon, with 68% of weekly flights leaving on this day.