Originally Posted by
TerryK
It reads to me that SDC will only be available for -24 hour flights instead of +/- 24 hour starting 2021. Please tell me I am wrong.
I see why you're saying that, but I suspect it may just be UA's typical lousy communication, since they're not really spelling it out as a change. Perhaps
UA Insider will be able to clarify, or we'll just see what happens January 1.