Qatar Airways has announced huge capacity increases across its network in Iran, including the launch of daily scheduled flights to a fourth city — Isfahan. An additional 31 flights each week will be operated by Qatar Airways, representing a 150 per cent increase in frequency. The capacity rise to 52 services a week, up from the current 21, will be phased in over a four-month period, starting December 1, the Qatari daily Gulf Times reported yesterday. Tehran will be served with an additional daily flight; Iran\'s second largest city of Mashad is to get nine extra flights; Shiraz, the economic centre of southern Iran, will be given eight new flights; and, starting January 11, services will begin to Isfahan in central Iran.