I'm not sure the bargain you're looking for actually exists. It's simply very expensive to fly any great distance right now. I had a similar disappointment in finding air rates that put a cruise I desperately wanted to book into the, looking for something else for next cruise category. In my case the cruise was this summer and air was even higher, last minute. My air would have bee over 4 1/2 times the cost of the cruise.
Also, with the dollar so weak against the Euro, once you get there, things are quite expensive. If you do happen to find some miricle air pricing, post it for us. I just don't think it exists at this point.