A quick search hasn't shown me anything on those dates either. Lots of I (business) availability the previous day on LX:
13 July, LX15 and LX17 JFK-ZRH and LX23 JFK-GVA. Any use?
Thanks for checking for me....is that LX flight with the new business class product?
Also, do you think its worth waiting a few days to book it, or would something open up, either via Houston or Canada way???? Would even try Turkish airlines as well??? Or should I just book what is currently open?