jet bridge vs landing

jet bridge

noun
  • An elevated corridor connecting an airport to a plane, usually enclosed and used for disembarking and embarking passengers and crew. 

landing

noun
  • A level area at the top of a flight of stairs, or connecting one flight with another. 

  • An arrival at a surface, as of an airplane or any descending object. 

  • A place on a shoreline where a boat lands. 

How often have the words jet bridge and landing occurred in a corpus of books? (source: Google Ngram Viewer )