F
#
FIRST CLASS
#
FIRST CLASS DISCOUNTED
#
FIRST CLASS PREMIUM
#
FOR MIDNIGHT
#
FOR NOON
#
FOR P.M.
CLASS AND SEASONALITY CODES
CODE WISE
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
R
S
T
U
V
W
X
Y
Z
FULL FORM WISE
A
B
C
E
F
H
L
M
N
P
S
T
U
W