I am super interested to see the details of this. The email says the pass can be used over 300 days a year; I'm sure certain holiday period flights will be ineligible. I'm curious if all Sunday flights will be ineligible as well, since that is by far the most popular travel day.

From the wording of the email, it appears that you won't know for sure if you can fly until the day before. Is that how everyone else is reading it?

This reminds me of the unlimited rail/bus passes for Amtrak and Greyhound. If flexibility is not a problem, this could be great. I'm just curious how this would work in conjunction with Elite benefits, especially since many people --myself included-- have already qualified for 2023.