Not a big fan of Tinkoff Bank, nor of S7 Airlines. The program has too many "conditions" and is expensive.
I'm used to the MOW-LED route, and it shouldn't be over 3000rub one way, or 5000rub return. But I don't fly there often. Specially in winter...
Otkrytie (Открытие) seems a better option, specially if having interests in Aeroflot international routes. Those of S7 are never very tempting, nor going to DME (though i've flown 12 times this year from there).
http://www.aeroflot.ru/partners/part...#!searchType=A