Shaheen Air International (Karachi International) will indeed resume scheduled passenger flights to the United Kingdom with a recent announcement that it will commence Islamabad International-Manchester flights with effect from March 1.
The 3x weekly service is on-board A330-200 equipment, the first of which is due for delivery shortly.
The Pakistani carrier currently operates domestic Pakistani flights as well as flights to Saudia Arabia, the United Arab Emirates, Iran, Oman, and Kuwait.