This QGIS plugin is intented to be a collection of tools to export spatial content from QGIS into flight simulators.
The flight plan maker tool is a processing algorithm that allows users to make a flight plan (.PLN) file from a set of vector points. To access the tool, open the processing toolbox and expand the Flight Simulator Tools node:
The tool has several options to specify waypoints' name, elevation, and ordering. Departure and destination airports will be automatically selected by locating the nearest airports to the first and last waypoint. Alternatively, custom departure and/or destination airports can be specified by entering ICAO IDs:
Tip: you can select a point dataset outside of available project layers by click on the [...] button.