Package gopenflights offers a library for easy access to openflights data. All data is loaded and cached during initialization from either explicitly specified CSV-files or directly from the openflights webpage (github.com/jpatokal/openflights)
The openflights database source can be found at github.com/jpatokal/openflights. Thanks !
Final documentation is available at GODOC. A short example how to use gopenflights is also included.