Frequent travellers WIL (Wilson Airport) know a few of them, pilots know a few MOR (Morristown Regional Airport).
They're the three letters on any travel booking that ensure we GET (Geraldton Airport) to where we want to BBE (Big Bell Airport).
So how well do you know your airport codes? Take the quiz below to find out.
Make sure you share your score on the Newshub Travel Facebook group.