Generally speaking, there is no student ticket discount for air tickets. Generally speaking, air tickets with student ID cards are not discounted unless the airlines have preferential activities for students, but such opportunities are rare. In terms of transportation, only trains have student tickets; And not all students can buy tickets with their student ID cards. Only when the home address and school are not in the same city and there is a train between the two cities can you buy a student ticket. Cabin code Each cabin is divided into different cabin codes according to normal fares and various special preferential fares. The first type of code is generally f, a; Business class codes are generally C, D, etc. For example, on some routes, economy class is divided into five codes: Y, M, L, K and T, which respectively represent different fares and different seats. International airlines generally define and use those letters as cabin codes by themselves, and there is no uniform regulation on cabin codes. Passengers can use the specified price as long as they reserve the specified space.