Back in 2016 I bought tickets to the BYU game in Glendale through their site, as they had the best seats still available. Doing that put me on all sorts of marketing lists and I have been getting offers for U of A stuff since. I did the same thing in 2018 for the game in Tucson (buying seats on AZ side through them).
And so far this year I’ve only gotten offers for tickets and season tickets for their local games in Tucson. They mention in their emails the opener in Vegas vs BYU, but no links to buy tickets, and not really emphasizing it in any of their emails or stuff I get in the mail.
I’ve tried going to all their websites looking for a way to buy tickets on the AZ side, and can’t find anything.
So I’m not sure they are selling them yet. Their spring game is on April 28, and getting tickets to that seems to be their biggest priority right now. It will be interesting if they wait until after the spring game to start promoting the Vegas game, and offering tickets, well after all the BYU tickets are gone.