The present invention relates to a method and system for providing a real-time lowest rate using an individual discount feature for providing real-time price information to a buyer in consideration of discount information on a travel product, and a sales server and a system therefor. Receiving the discount information of the buyer including the beneficiary, the disabled, the military, the group, the Jeju citizen or the honorary citizen, and when the sales server receives the request for the price information of the ticket from the buyer terminal, Receiving the price change information in real time, calculating the air fare to which the personal information and the buyer discount details are applied at the normal fare of the plurality of airlines when the sale server receives the request for the price information of the ticket from the buyer terminal, , The sales server is within the personal information and buyer discount By applying the comparative price information and prices apply real-time offers available from multiple airline ticket includes the steps of providing price information to the buyer for the cheapest flights terminal.
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