Cheap flights from London Heathrow Airport to Barcelona from C$ 65

The cheapest month to fly to Barcelona from London Heathrow Airport is in November. Flight prices, which tend to average around C$ 168, are often lower during this time because this is during the off-season. If you’re not able to fly to Barcelona in November, then January is your next best option. Flight prices from London Heathrow Airport to Barcelona during January average around C$ 179.

According to our data, Tuesday is the cheapest day to fly to Barcelona from London Heathrow Airport. The lowest ticket price found for a Tuesday departure recently was C$ 151. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Barcelona for around C$ 348.

Our most recent data shows that the best time of day to fly to Barcelona is in the afternoon. Flights from London Heathrow Airport to Barcelona during this time can be as low as C$ 158. Try not to purchase tickets in the morning because they tend to be around C$ 242. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Barcelona from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around C$ 260 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from London Heathrow Airport for as low as C$ 235 on momondo.

There are 2 cabin classes available to choose from on London Heathrow to Barcelona 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 London Heathrow to Barcelona

British Airways, Vueling and Iberia are the top three most popular airlines that fly to Barcelona from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Barcelona. Keep in mind that there are 3 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 113 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon 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, British Airways has had the least delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Barcelona is 23 per day as of March 2026. The most frequent departure time is 7:00a.m., with 62% of daily flights leaving at noon.

The number of flights available between London Heathrow Airport and Barcelona is 161 per week as of March 2026. The most frequent departure day is Wed, with 25% of weekly flights leaving on this day.