A First Class Discounted
B Economy/Coach Discounted
Bn Night Econ/Coach Discounted
C Business Class
Cn Night Business Coach
D Business Class Discounted
E Shuttle Service (No Reserv'n)
F First Class
Fn Night Coach in First Class
H Economy/Coach Discounted
J Business Class Premium
K Economy/Coach Discounted
Kn Night Econ/Coach Discounted
L Economy/Coach Discounted
M Economy/Coach Discounted
P First Class Premium
Q Economy/Coach Discounted
Qn Night Econ/Coach Discounted
R Supersonic Aircraft
S Economy/Coach
T Economy/Coach Discounted
U Shuttle Service (Seat G'teed)
V Economy/Coach Discounted
W Economy/Coach Premium
Vn Night Econ/Coach Discounted
Y Economy/Coach
Yn Night Economy/Coach
Source - OAG.
I thought these were meant to be standard?