Hey there. I'm silver preferred on US Airways, which means I get the bottom of the barrel when it comes to auto-upgrades. I was wondering if there was any particular day of the week or time of day flights that are more likely to get upgraded? Is there a flight day/time that's quite unpopular among business travelers (which I assume most upgrades are going to, but I could be wrong).

Or is it just luck of the draw??? I've been Silver for 2 years and I've received **ONE*** auto-upgrade and we fly a lot!

Just curious before I book my flights! I'm 7 mos. pregnant and I hate sitting in coach when I'm this uncomfortable!!! Plus proximity to the bathroom worth it's weight in gold, LOL!

Thanks~!