KARACHI - With an aim to promote tourism in the spring season, Pakistan International Airlines (PIA) has announced discounted fares for domestic flights. The national carrier unveiled discounted fares for flights to Karachi, Islamabad and Lahore. The passengers have been offered reduced fares to travel through PIA while carrying 20-kilogram luggage at the price of Rs7,500 for one side, whereas, Rs8,500 will be charged for travelling with 40-kg luggage. According to the PIA spokesperson, the new fares will come into effect immediately. The spokesperson said that the fares have been reduced to facilitate tourists and nationals during the spring season.