Is there a good tutorial on how to add/edit FSX flight plans using AI Flight Planner?I have read the PDF, but cannot understand how to add flight plans for an airport that does not exist in the AI traffic file.Also, where does one find actual flight plan data for airlines - e.g., aircraft type, flight No., departure/arrival times, etc?

Have you tried the FSDeveloper.com forum? They have a Living World & AI forum with tutorial postings, and there is also a Tools Support forum for AI Flight Planner.

A number of us have already tried to assist you on the very same question over at Flightsim. The manual is quite straightforward - all it takes is a little study, patience and experimentation.Regarding schedules: Have you checked to see if the airline(s) in question have a web site? If they do, they may have a schedule you can work from.