If you happen to fly over London landing from the East and it is clear, then the right side of the plane gives great views of London. The RIGHT hand side. IF you get to fly over central London then the aircraft fly in just to the south of the Thames, from east to west.

For the best views when landing at London Gatwick (LGW), the right-hand side of the plane (Seat K or F) is generally the winner. Because the prevailing winds in the UK usually come from the West, most planes approach the airport from the East, flying over the Kent and Sussex countryside. If you are sitting on the right, you often get a fantastic view of the English coastline as you cross the Channel, followed by the rolling hills of the High Weald. On clear days, if the flight path takes a slightly more northern "hold," you might even catch a distant glimpse of the London skyline and the Shard. If the wind shifts and you approach from the West, the right side still provides a better view of the charming villages of Surrey. However, always check the "Live Flight Tracking" on your seatback screen, as Gatwick's single-runway operation means landing patterns can change quickly based on traffic and weather.