An airline booking ploy whereby to travel from A to B a (usually cheaper) ticket is bought from A to C with a connection at B and the traveller ends the journey at B without continuing to C. This tag is for questions about the practice and its advantages and disadvantages.
Hidden city ticketing is an airline booking ploy in which you want to travel from A to B, so you buy a ticket from A to C with a connection at B, get off the plane at B, and never travel to C at all. This tag is for questions about the practice and its advantages and disadvantages.
There is an article on Wikipedia.