Originally Posted by
jsloan
It will be AC's responsibility to get you to WAW, although UA may be willing to help also. You should not need award space, although some agents may insist upon it anyway. (*A rules are very clear on this, but they're not always obeyed). LAX is a relatively small hub for UA, particularly TATL, so if they can't get you onto LH or LX you may be looking at an extra connection on the East Coast. AC may also try to route you back through YYZ.
If it looks like you may have issues, I'd be prepared by looking to see what alternate *A flights have inventory so you can be prepared to ask.
Thank you! just got a email "
We’re trying to reach you with an important message about your upcoming flight. Please give us a call at 1-888-825-7684 as soon as possible."
Checked online the AC flight been pushed back 1 hour so left me 8 mins to transit in LAX now 
I guess I can call in ask any flights 155k miles I want? (better transit from SFO/DEN since it's a UA hub?), actually I would prefer to travel 3 days earlier do you think that will ask too much or worth a try? Just want to be prepared before call in.
If they won't change the date I'm thinking of wait for last-minute transpacific business class space https://princeoftravel.com/guides/wh...m-award-seats/, do you know if United still release these seats nowdays?