I assume by "late tomorrow" you mean the 5:30 flight, #1843.
[KVS Availability Tool 5.8.0/Diamond - Sabre: Availability/GTC/US-LTR]
Code:
JFK New York John F Kennedy Intl NY US [KJFK]
SEA Seattle/Tacoma Intl WA US [KSEA]
WED 01 Dec 2010
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- -------- ---- -------- --- -- --------------------------------------
DL 1843 JFK 17:30 SEA 20:50 73H 0 C0 D0 S0 I0 Y9 B9 M9 H9 Q9 K9 L9 U9 T9
No seats in Business are being sold. No Business seats are empty on the seat map. Upgrade inventory, naturally, is also 0. Consider her chances 0%. There's always the chance that someone might cancel and she's #1 on the list and clears at the gate, but that's about as long a shot as Brett Favre ever playing decent football again.