Charter ticket isn’t bought from airline companies. These tickets are only bought from agencies and charter seller companies. Companies rent yearly or seasonally all or part of the crowded paths. Because of major booking of flights previously and selling to passengers in the future, the price of these flights are determined by companies that sell charter flights and price determination isn’t possible for airlines. Because of this, the cost of charter flights is very variable. Its reason is price fluctuation in this kind of tickets in different times and according to conditions of the company that sells charter flights. If the charter fight seller cannot sell all of the flights, it must pay total cost. Therefore, closing to flight time, the company sells the flight tickets with low price in order to reduce the amount of financial loss to the lowest amount.
Airlines have different flight paths that they are determined based on equipment and conditions. Usually airlines flight schedule are determined yearly to provide ticket buy possibility for passengers in long-term intervals. Theses scheduled flights on airlines are named Scheduled. For example for Nowrooz travels schedule that every day closer to the holiday date, there is less chance for finding tickets, you can buy scheduled ticket several months ago and in holiday time, don’t worry about your travel. If your travel changed or canceled for any reason, you can cancel scheduled ticket easily. The payment is returned to your account after cancellation fine deduct. Another advantage of scheduled ticket is difference in price for different age groups: ticket price for infants (0-2 years old) and children (2-12 years old) have significant discount percent than adult’s ticket price although the amount of it depends on different airlines.