* B, H, K, L, M, N, Q, T, V: discounted economy class
*** These are not fare basis codes, they are classes of service (known as RBD [Reservation Booking Designator]in fare filing parlance). The class of service is *usually* the first letter of a fare basis code ***
==References==
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{{aviation-stub}}
'''
** These are not fare basis codes, they are classes of service (known as RBD [Reservation Booking Designator]in fare filing parlance). The class of service is *usually* the first letter of a fare basis code **'''
