If you are based in the Southwestern U.S. and are looking to get to Eastern Europe in one world Biz, then this might be a good one to jump on.
Scattered dates through the year. Sample itinerary:
Segments book into I except intra-Europe which book into J.
If you prefer (as I do) to make connection ex-US, can make the return connection through LHR for about $40 more.