Best OW alliance for non-expiring miles
Hello all,
This is my first post to flyertalk although I have been a lurker for a while.
I was wondering what people thought was the best airline in OW if someone wanted to get miles that never expired. I travel around 500k - 600k BIS miles a year and currently use Finnair as my OW carrier and also have a Marco Polo account. Both of these programs do not offer a lifetime mile option at any of their status levels so I was wondering what the best program that the majority of people use to circumvent that was.
Thanks a bunch!