Aeroflot vs Delta mileage
I didn't choose a plan wisely when I first took a SkyTeam flight, and have about 2.7 k of miles in Delta SkyMiles.
I'm based in Hong Kong, and among all SkyTeam members I will likely to take Aeroflot the most, for the sole reason it is much cheaper than all other competitors to Europe (I just bought round-trip ticket to Helsinki for less than 6k HKD in Easter when economy in direct Finnair flight has already been sold out!), and for some possible itineraries (e.g. from Hong Kong to Russia then open jaw leaving from EU) Aeroflot is the only choice.
1. Do Aeroflot miles expire in two years without flight activity?
2. If I am sure that I can take a SkyTeam flight every two years, is it better of using the native program of Aeroflot instead of Delta Skymiles because most of my flights in SkyTeam will be on Aeroflot transferring at SVO to Europe (for example, the Easter flight I mentioned are classes N and Q which offers 75% miles in Aeroflot but only 25% in Delta)? Which programme has better value?