the price you pay to travel on a plane, train etc when this includes travel to a place and travel back from a different place“开颌式”来回票价〔乘飞机、火车等到一地,再从另一地返回的票价〕
From Longman Business Dictionary
open-jaw fareˌopen-ˈjaw ˌfareTRAVEL
a fare for travel to a place and travel back from a different place, the passenger making other travel arrangements between the two places