The Jiayuguan to Xi'an special ticket I bought was more than 400 and after submitting it became more than 500

Air ticket + airport construction fee 50 Insurance Some bundled gift packages Pay attention to the payment period Remove unnecessary default checks

Looking at the details, the airport construction fee of 50 yuan must be paid, and the fuel surcharge must be paid if there is any. The rest can be removed if it is bundled with insurance and the so-called "travel gift package".