Three Haj flights were cancelled on Tuesday while 14 were delayed as the national flag carrier is still handicapped by six grounded aircraft. Hajj flights PK 1031 from Karachi, PK1431 from Islamabad and PK 1331 from Lahore were cancelled while PK 1435 Islamabad-Jeddah was delayed by an hour. PK 232 Dubai-Quetta...