Can someone explain the booking classes on seatcounter.com
Below is a search on AUH-LHR on EY on 21 June, would someone be kind enough to interprete availability in Y in simple terms for non-rev such as 'expect to have 50 seats empty'
Availability by Booking Class (by class)
A B C D F H I J K L M N O P Q S T U V W Y Z
0 9 0 0 2 9 5 9 6 9 9 0 0 9
Thanks in advance