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A travel class is a quality of accommodation on public transport. The accommodation could be a seat or a cabin for example. Higher travel classes are designed to be more comfortable and are typically more expensive. ==Airline booking codes== While an airline may only have two or three classes of service, they will use approximately ten to fifteen different booking codes in order to control the amount of each fare level sold. The booking code used by airlines and agents is typically (but not always), the first letter of the fare basis shown on the ticket and in industry fare displays. Historically, airlines only used a few codes, and these were almost identical across the industry. Typical examples were F or P for First Class, J or C for Business, and Y for economy. With the advent of cheaper fares and more frequent travel, airlines increased the number of available fare types and the number of booking codes required to differentiate among them. There is now no industry standard with regard to airline booking codes, although the Y code is almost always still used for unrestricted economy travel. Most low-cost carriers have greatly simplified the fare classes they use to only a few codes, unlike full-service airlines, which use many more. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「travel class」の詳細全文を読む スポンサード リンク
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