Planning from East London? Take the Elizabeth line or Tube to Farringdon or London Bridge

https://cesarfjap407.theburnward.com/gatwick-airport-journey-planner-tools-and-tips-to-pick-the-right-route-1

Planning from East London? Take the Elizabeth line or Tube to Farringdon or London Bridge, then transfer to Thameslink for a direct ride to Gatwick Airport station.