Sit on the Left side of the plane for the best views on flights from Barcelona to London. Left side wins at both ends of the flight. Over the Pyrenees and southern France the views are broadly similar on both sides, but the left side captures Barcelona on departure and London on approach, making it the clear choice for the whole journey.

During takeoff from Barcelona (BCN), sit on the Left side for the best views. Barcelona El Prat typically departs on runway 24L/24R heading southwest, then aircraft turn northwest toward France. The left side gets the city of Barcelona, the Sagrada Família district, and the coastal plain before the Pyrenees come into view. Right side faces the open Mediterranean early in the climb. Notable sights include: Barcelona city grid and port, Montjuïc hill, Llobregat delta wetlands, Pyrenees foothills to the northwest.

When landing at Gatwick (LGW), sit on the Left side for the best views. Gatwick predominantly uses runway 26L/26R for arrivals from the south, meaning the approach track comes in from the southeast over the Surrey and Sussex countryside. The left side faces north toward Greater London, giving clear views of the city skyline on the horizon during the approach. Right side looks south toward the South Downs and open countryside. Notable sights include: Greater London skyline on the northern horizon, the North Downs ridge, the M23 motorway corridor, the Weald of Surrey and Sussex patchwork farmland.

The flight from Barcelona (BCN) to Gatwick (LGW) takes Approximately 2 hours 10 minutes.

The flight crosses the Pyrenees between Catalonia and southern France, then tracks over the Languedoc plain and the Massif Central foothills, across the Loire Valley, over the Paris Basin and Île-de-France region, then the English Channel near Dieppe or Boulogne before crossing the North Downs into Surrey.