Cheap flights from Barcelona-El Prat Airport to London from $57

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Barcelona-El Prat Airport, with most prices found around $183. If you aren’t able to travel during the month of January, then book flights to London Heathrow Airport from Barcelona-El Prat Airport during February instead. Flights to London Heathrow Airport in February, while not as cheap as those in January, still average around $192.

Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $481. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Barcelona-El Prat Airport to London Heathrow Airport for around $1,412.

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

You are more likely to see cheaper flights to London Heathrow Airport from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $241 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Barcelona-El Prat Airport for as low as $215 on momondo.

There are 3 cabin classes available to choose from on Barcelona-El Prat to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 38% on your flight if you consider stops on a Barcelona-El Prat Airport to London Heathrow Airport flight.

Historically, on average around 14% 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 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. Sunday 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 11% of their flights experiencing any sort of delay.

As of April 2026, 17 flights take off from Barcelona-El Prat Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 07:00, with 44% of daily flights taking off at midday.

As of April 2026, 121 flights take off from Barcelona-El Prat Airport and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 32% of weekly flights taking off on this day.