With the gang in Park City not getting along, it appears there won't be a Quickstart free ski day promotion this year. Quickstart gave you a free lift ticket on the day you arrive by plane in Utah as long as you signed up ahead of time, and showed your boarding pass.
However, it looks like Snowbird and Alta have a half-price ticket deal good within 24 hours of your next flight on a Monday-Friday.
With that, it appears if you get there on a Monday night, you can ski half price on Tuesday!
In my opinion a full day half price ticket in LCC is far better than the half day or so you'd get in PC for free.
Edit: the Powder Mag article implies half price, but it looks like the snowbird website says its $52.50