Why are tomorrow's fares get higher? It's simply means that the fare of flying tickets will be high if the flight is fully booked.Example: 1 person planning to travel from Ercan to Istanbul today with availability of three categories of carrier Turkish airline, Pegasus, Atlas jet. Turkish airline is full, Pegasus 1 seats remaining, Atlas jet 3 seats remaining and we have 30 passengers, so we decided to change the fare from 200TRY to 600TRY, for 3 times higher than the normal price. This happens because of emergency, lack of planning and on expected invitation.