All the airports that Pakistan International Airlines flights have come from See the airports that Pakistan International Airlines flight have traveled to / or see all the flights this airline has flown (in and out of SFO)

Istanbul Airport. This airport in Turkey is also referred to as IST or sometimes LTFM

All these flight data are available as openly licensed data on the sfomuseum-data GitHub account. If you'd like to read more about our efforts to archive flight data at SFO Museum have a look a the Mills Field weblog posts tagged "flightdata".