I'm considering novreving to Australia from Chicago sometime this year. Does anyone have any experience nonreving to Australia? I can purchase tickets on both UA and QF, but would prefer flying UA becuase of the likelyhood of getting upgraded. Are there certain times of the year that are better to travel, in terms of typical loads between the US and Australia. I can fly either through SFO or LAX. Any one better than the other? Thanks for any info!