Cheap flights from Barcelona to London from £18

The cheapest month to fly to London Gatwick Airport from Barcelona is in November. Flight prices, which tend to average around £62, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in November, then you should wait until March to fly from Barcelona, when ticket prices are also cheap, with an average price of £63.

According to our data, Saturday is the cheapest day to fly to London Gatwick Airport from Barcelona. The lowest ticket price found for a Saturday departure recently was £52. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Barcelona to London Gatwick Airport on a Tuesday will generally be more expensive and average around £94. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Barcelona to London Gatwick Airport flights are usually those with departure times in the morning. Our users have found flights to London Gatwick Airport in the morning for as low as £73. In contrast, the most expensive time of day to depart to London Gatwick Airport is in the afternoon when prices are around £108.

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

You are more likely to see cheaper flights to London Gatwick Airport from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around £92 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Barcelona for as low as £65 on momondo.

There is only 1 cabin class available to choose from on Barcelona to London Gatwick 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 16% 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 123 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.

Saturday 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 February 2026, there are 11 flights per day flying from Barcelona to London Gatwick Airport. The most common time of day flights depart is 07:00, with 45% of flights taking off in the afternoon.

The number of flights available between Barcelona and London Gatwick Airport is 77 per week as of February 2026. The most frequent departure day is Fri, with 40% of weekly flights leaving on this day.