Originally Posted by
CPRich
Correct, Silver for life. I think I passed 2M but had no indication of any higher level.
Million Mile Flyers
I suspect the 3-year period is a left over from when it used to be that. It's been 18 months for nearly 5 years. They'll get around to updating it some day.
The miles expire in 18 months but the account itself isn't closed for 3 years.