Cheap flights from London Heathrow to Barcelona

from as little as £349

15 nights in Barcelona, departing London Heathrow on 03 / May / 2026 with British Airways (price found 80 hours ago)

Subject to availability, prices correct of the last 24 hours
Barcelona

The London Heathrow / Barcelona route

All 1149 km of it

Cheap flight deals for this route

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Barcelona flight facts

What you need to know

Alternative flights from the UK to Barcelona

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Barcelona

03 / May / 2026 is currently the lowest priced day of the year to fly the London Heathrow/Barcelona route. There are around 41 flights on any given week from the UK to Barcelona and the cheapest month to fly right now is May.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

4 °C

AVG

16 °C

HIGHEST

28 °C

Rainfall (mm)
LOWEST

25 mm

AVG

47.7 mm

HIGHEST

86 mm

Key facts about Barcelona

How to get cheap flights from London Heathrow to Barcelona

Tips and advice from our flight experts

If you're looking to fly from London Heathrow to Barcelona, you might like to know that 03 / May / 2026 currently has the cheapest flights. At the moment, there are nine airlines flying to Barcelona. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Barcelona.

There are 41 flights from London Heathrow to or via Barcelona every week. Out of the nine available airlines, the most popular ones are Air France, British Airways & Iberia Airlines. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.

Generally speaking, the flight from London Heathrow to Barcelona takes around 6 hrs 55 mins. The fastest flight takes 2 hrs 10 mins to cover the 1149 km distance. You can view all flight times yourself in the results list.

If you want to travel in August, it's best to book your flights early, as this is peak season in Barcelona. The cheapest month to fly is normally April – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.

Other popular destinations near Barcelona

Where other people are flying to

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