By Irfan Pardesi LONDON: British Airways has today announced that it will fly from Heathrow to Islamabad, the capital city of Pakistan, from June 2, 2019. Tickets are on sale from today. The route will launch as a three-per-week service, operated on a three-class Boeing 787 Dreamliner – British Airways’ newest long-haul fleet that is 20 per cent more fuel efficient than other …