07/22:
DL091 ZRH-ATL: looks like all classes are available except for G (which is the lowest Premium Eco inventory). Premium Eco is now selling P9A9G0. Seat map shows no Premium Eco seats occupied yet (though that could be misleading)

DL053 ZRH-JFK only selling P9A0G0 for Premium Eco with seat map showing 4 seats occupied in Premium.

07/23:
DL091 ATL:
J9C9D9I0Z0 for Delta One
P9A0G0 for Premium (seat map shows 2 seats occupied)
W9S0 for Comfort Plus
All “9”s in Eco.

DL053 ZRH-JFK:
Premium Eco wide open with P9A9G9.


For the return:
08/12 JFK-ZRH:
all showing “9”s across the board except Delta One is at J9C9D9I9Z8.

08/13 JFK-ZRH:
wide open; all showing “9”s across the board in all fare classes