Massive reduction in charter flights
Looking at the Gatwick website, it looks as though the era of the overseas charter carrier is over. Whilst there are numerous flights operated by Thomson, Thomas Cook and to a lesser extent Monarch, there are very few others. It would appear that Viking's announcement of its withdrawal from Gatwick robs the airport of its fourth largest charter carrier.
The remaining charter flights are being operated by Onur Air (8 per week), Balkan (1), Bulgaria Air (1) and Air Transat (8).