Pakistan, Sept. 3 -- Pakistan International Airlines will begin operating daily flights to London from Oct. 27, increasing its weekly services to the British capital from four to seven, the national carrier said on Wednesday. Under the revised schedule, PIA will operate five weekly flights between Islamabad and London and two between Lahore and London, expanding direct air links on one of Pakistan's important international routes. The increased London frequency comes as PIA seeks to rebuild its international network and capitalize on high-demand routes serving overseas Pakistani communities. Britain is home to a large Pakistani diaspora, creating substantial demand for travel between the two countries. PIA currently operates direct servic...