🤔 even for me as experienced frequent flyer:

I have the “Delta SkyMiles Reserve & Reserve Business [AMEX] Card[s]”.

#Delta #SkyClub T&C's <https://www.delta.com/us/en/delta-sky-club/access#terms>:
> “Boarding pass must show…reservation for…same-day [Delta] flight departing from or arriving at the airport in which…SkyClub is located.”

My 🛫: Alaska, early AM.
My 🛬 : Delta, late PM,same day,same airport (not staying overnight)

∴ same-day Delta boarding pass *arriving* at the airport when waiting for my Alaska flight.

Delta Skyclub will allow bkuhn entry right away.
38.5%
Delta SkyClub will refuse entry — no matter what.
0%
bkuhn shows T&C to staff;entry reluctantly granted
46.2%
TSA tackles bkuhn; he doesn't fly that day
15.4%
Poll ended at .
Delta Sky Club® Access | Delta Air Lines

Learn more about accessing a Delta Sky Club at the airport and the number of guests allowed. Review FAQs about Delta airport lounge visits.

@bkuhn Apparently airlines make the vast majority of their money from first-class passengers and frequent flyers, which is why they spend so much money on things that aren't actually about aircraft but are more exclusive, such as departure lounges.

Considering that, it seems unlikely to me that they'll refuse you entry on a technicality, because of the risk of reputational damage. I mean who would try to get a loyalty card for an airline that turns passengers away like that, when you actually have the card?

Maybe I'm just naive though... Wishing you luck ;)