Im planning a trip to Russia on my christmas vacation and need to find the cheapest seats possible flying from San Fransisco... Does anyone know any good, lesser known sites where i can get a ticker for under 1,000?

I've already been to Expedia, Orbitz, Travelocity, Priceline, Cheaptickets, etc...

The best i've seen so far was 950.00 but there was like a 9 hour wait in frankfurt... that's pretty brutal.

Does anyone have any recomendations or anywhere to suggest to start looking?