Hopping on this thread to double check access. Our itinerary is paid first (Z class) YVR-SEA-ATL (overnight)-CZM. Looks like the SEA-ATL leg the seat map shows the lie flat seats but it doesn't say Delta One. Would we have lounge access in SEA and ATL? We have priority pass as well, so have that as a back up, though I haven't flown through ATL much (only 2x actually), so not sure about any of the lounges there that would be convenient to our flight to CZM. Thanks for the input! When I logged on to inquire, I figured we wouldn't have access to Sky Clubs, so I'm intrigued we might?