Some sellers selling special air tickets advertised that the air tickets were "free of infrastructure and fuel fees" and even said they were sold at a 20% discount. The so-called "no fuel cost" means that this kind of special ticket actually adds the cost of fuel to the ticket price.

There are actually many sources of such air tickets. Common methods include low-price tail tickets, mileage redemption tickets and even stolen credit cards. Such air tickets will have problems such as slow ticket issuance and poor cabin class.