Almost every year, they have summer time business class sales from USA to Europe. Does anybody know when these sales begin? Now that UA has a spend requirement of 10,000 dollars, I need to spend more cash, but I still want to save money. I think these business class sales in the summer are best (haven't seen them on a routine basis to Asia, only sporadic).

Anybody know when these fares usually come on board? Last year, I got some great fares in the winter, but they all seem very high now.

Thanks.