Around midnight PST (9 hours ago) i couldn't login via the app or via mobile/chrome. But I was able to plug in confirmation code to complete checkin for my flight this morning, so not all is lost.
But just now I still can't login.
I also tried to bring up my flight tomorrow via conf code but didn't work... which is a bummer as I really want to change it. (Will just do it when i get to the airport with an actual person, in-person... the old fashioned way!!!)