Crossed over 1M on 842 from SYD->LAX 2 weeks ago
I emailed my corporate sales contact beforehand to ask for a few things and got no response
Very fantastic greeting at check-in from the Sydney operations manager who presented me with a spiral bound book of all the flights I have ever taken on UA to get to this point
Was invited to be the first person onto the plane, got an invite from the captain up to the cockpit and was presented with a full flight plan and a United branded Jeppesen map with the flight plan with the magic point marked on the map
The captain also took a picture of the horizon from inside the cockpit when we hit the mark (using his own phone) and emailed it to me after the flight
Props to UA for making it special for me