Public Transportation

Public transportation is the most economical way into and out of the Jinnah International Airport Karachi, as for other part of world, but depending on the mode (bus vs train) and the time of day it can either be the slowest way to get to the airport or the fastest. Public buses are cheap, but make frequent stops and may require connections. Be prepared for a longer trip in times of rush hours if taking a bus.

There are so many bus routes are available that passes though the Main Shahra-e-Faisal almost from all the length & breath of the Karachi City. The link / access road of Jinnah Terminal Karachi connect the Main Shara-e-Faisal to the airport.

Also note that during off-peak hours and holidays, certain options may either not be available or may be running a reduced frequency. Make sure you have prepared accordingly beforehand to save yourself any undue frustration.

Important suggestion to travelling Passengers:

If you are new in the Karachi city area, make sure you inquire earlier with the cab driver to get an approximation of the fare.
There are countless documented stories from frustrated travelers worldwide who have been 'taken for a ride' by an unscrupulous taxi driver out to make a few extra bucks.
Also, ask about traffic at the time you get your taxi, and ask him if he/she knows the alternative routes.
Carry a map to your destination - many taxi operators surprisingly are not native to the area and may not know all the short-cuts.
You might also want to ask what the airport pick-up surcharge is. This way, your taxi ride to your destination will be stress free.
If arriving into an airport you are not familiar with, the best bet is to first go to the CAA information desk / Facilitation Counter placed at international departure concourse area JIAP and inquire about transportation services.
If you are taking the Cab from your Hotel complimentary Service, then you can also call your hotel in advance and ask them how much you should expect to have to pay the cab if applicable.