I fly premium economy from Europe to the US 3-4 times per year, and this is usually enough to keep my top-tier status. I fly SAS (preferably) and I try to fly o

I fly premium economy from Europe to the US 3-4 times per year, and this is usually enough to keep my top-tier status. I fly SAS (preferably) and I try to fly on less popular times of the year/days of the week, which increases my chances of getting upgraded. I avoid connections in the US if I can because I rarely get good seats as a non-United ff.