Same here. Safari 8.0.2 on Yosemite 10.10.2. It worked in Firefox though, but unfortunately didn't make me any good at the game. I couldn't get ILS. Maybe I didn't understand the landing part.
It looks like it works best when you point the plane in the right direction at 5000 feet, then have them fix on the named point in front of the runway in question, and tell them to land. Waiting until they're on the runway-skewers is too late.
