Airline tickets are becoming costlier by the day, with airlines telling everyone it is owing to government taxes/fees or charges. As a routine practice, airlines mention various amounts against codes which people take as taxes. It is paradoxical that double charges are being recovered from passengers for the development of two different airports under differing codes. The national airline, for instance, charges the passengers travelling to Toronto for infrastructure development under code YD, and it also recovers a fee as Canadian airport improvement charges under code SQ. Also of interest are codes YQ and YR.