I'm sure this is a duplicate question but I couldn't find a post related to this. Is there any way to search an entire month for U inventory? On ExpertFlyer I have to go day by day...which is quite annoying.

Also, I first searched the AA website for mile saver business from LAX > SYD. I found Feb 4 and Feb 27 (return). I searched ExpertFlyer for those dates and it returns zero U inventory. How is this possible?

PS: I'm trying to redeem the BX9B or BX9C biz extra certificate. Thank you for the help!