Unlike other transport and travel sectors, airlines have highly computerized and automated systems, allowing them to vary the ticket prices according to the demand and supply of the ticket to maximize their profit.
Till recently the train, bus ticket prices for a particular route remained the same through out the year, as the same distance was being covered by the vehicle. However airlines try to take advantage of the increased demand for tickets to a particular place during specific periods by increasing the ticket prices to a very great extent.
Similarly when there are few visitors or travellers on a particular route, they may reduce the airline ticket prices, launching airline ticket promotions