hidden city
n.— «If I change planes in Amsterdam and go on to Istanbul, it costs $550. If I get on the same flight at Bradley, skip the Istanbul flight and stay in Amsterdam, it’s $45 more. The extra three and a half hours of flying for nearly 1,400 miles actually reduces the price.…Most airlines specifically forbid that kind of maneuver which is called hidden-city ticketing.» —“No Hidden Cities Allowed” by Jeanne Leblanc Hartford Courant: Coach Class Jan. 13, 2008. (source: Double-Tongued Dictionary)