Hi there, I am looking for a FF program from Star Alliance. I will not be flying much but will fly at least twice a year. So I am looking for a FF program that will help me to accumulate miles that will not expire? Is there still any program which miles will not expire? Affiliation with Qantas would be the best, as I fly Qantas or SQ to Perth every year depend on which is the cheapest.

Thanks.