A ticket does not include all costs of flying.

Generally, when we buy "tickets", the price we see is only the price of the air ticket. The popular understanding is "buying a seat ticket" or "buying a seat ticket for this flight."

Usually the "tickets" we buy also include fuel surcharges, civil aviation development funds, insurance premiums, etc.

1. Fuel surcharge: must be charged when purchasing a "ticket".

It is a surcharge charged by shipping companies and liner conferences that reflects changes in fuel prices.

The cost is expressed as an amount per ton transported or as a percentage of freight.

2. Civil Aviation Development Fund: original airport construction fee.

Must be charged when purchasing a "ticket".

3. Insurance premium: Optional purchase when purchasing "air tickets".

Such as accident insurance, delay insurance, etc.