Every other suggestion is amateur , for the professional airport hell there is no where to compete with Karachi.
The scene is set by staff on the national airline whose main function seems to be to sit at the back and amuse themselves without being worried by such mundane matters as plane safety.
Before you arrive the local newspapers are full of stories of people having their luggage robbed by baggage handlers and only finding out when they arrive at destination with suitcase full of newspaper , you cannot put an insurance claim in once you leave airport.
Arriving is like being in a sauna, hot and humid beyond belief .
The security is intimidating and scarey and I’ve been through immigration at JFK many times , they seperate male and females to really search you. Staff are monumentally slow and disinterested , everyone skips queues , it’s survival of the fittest.
The fellow passengers waiting in airport are intimating and the whole atmosphere is threatening , with females subject to a lot of staring.
You do not want to know about the toilets and general cleanliness/upkeep of the infrastructure.
I’ve only ever transited through Karachi , just as well as the city is not a safe place , the airport is bad enough.