

The Hampton By Hilton is connected to Gatwick's North Terminal by undercover walkway and is within 5 minutes, by free transit, of the South Terminal. Official Long Stay Park and Fly deals available.
This must have popped up since last time we visited Gatwick Airport. Handy location and good long term parking. Word of advice...probably best not to pack an overnight bag for the stay as you'll need to move your car to the car park to save additional overnight charge at the hotel but easy enough to get to and from the car and hotel (via the terminal) on the free bus.