Originally Posted by
Turbosina
Very helpful, thank you!! One more question: when departing the UK, how does one obtain a boarding pass and get through security without an assigned seat? (Assuming I'm not on VS). I've never nonrevved internationally on a pax carrier so I'm not aware of the process. And how does one pay departure taxes?
Thanks in advance

It's similar to non rev in the US, you'll get a boarding pass with 'Seat Assigned at Gate' or similar on it. Don't attempt to use the automated customs machines, go to the human and tell them your on standby. it's all very simple and smooth. (Delta at least...)