What does the flight availability code mean?
 

I was upgraded to FC from CMH to ORD, but not on ORD to SFO. Here is what I got from

Notes
Cabin class: F8 C8 Y4 B4 M4 E3 U0 H0 Q0 V0 W0 S0 T0 K0 L0 G0
Meal:
On time: 60%
Distance: 1846 mi
Stops: non-stop
Flight Time: 7:36
Boeing 767-300/ERBoeing 767-300/ER

This is my flight on the date in question. What does the code mean and what tells me that there are no bumps to first left? Thanks!

See Ozstamps thread, also available via the FAQs.

The F8 tells you there are 8 first class seats left to sell. On a 767 that's not many, thus why your upgrade didn't clear.

Ugh!

I also looked at AA through DFW and it is showing NO seats. With these loads, I hope UA and AA make it.