Full list of National Express coaches running to and from London on Christmas Day - MyLondon
Gatwick Express - Wikipedia
IMG_0874 | Gatwick Express Route | Nur Aisyah | Flickr
Map of London commuter rail: stations & lines
London airports transfer map | Gatwick, London city, Plan de métro
National Rail strike: Only travel if your journey is essential on Gatwick Express, Great Northern, Southern and Thameslink between 21 and 26 June - Rail UK
Govia Thameslink Railway improves journey planning by launching new Live Map function | Govia Thameslink Railway