Cheap flights from Barcelona to London from $38

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Barcelona, with most prices found around $131. If you’re not able to fly to London Heathrow Airport in January, then November is your next best option. Flight prices from Barcelona to London Heathrow Airport during November average around $134.

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 $268. The most expensive day to fly to London Heathrow Airport is Tuesday, with ticket prices averaging around $631.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Barcelona to London Heathrow Airport in the evening for as low as $223. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $542.

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

You are more likely to see cheaper flights to London Heathrow Airport from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $172 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Barcelona for as low as $151 on momondo.

There are 4 cabin classes available to choose from on Barcelona to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Vueling is the most popular carrier operating from Barcelona to London Heathrow

British Airways, Vueling and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Barcelona according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% 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 in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

As of February 2026, 17 flights take off from Barcelona and land in London Heathrow Airport each day. The most common flight departure time for this route is 7:00AM, with 44% of daily flights taking off at noon.

122 flights are operational weekly from Barcelona to London Heathrow Airport as of February 2026. The most popular departure day for this route is Sat, with 29% of flights per week taking off on this day.