Buzz
Q
The letter Q represents standard tickets, but purchased at a promotional price. These tickets are not eligible for upgrades and the ticket holder does not receive any additional benefits during the journey. These tickets fall under categories B, H, M, and Y. Equivalent characters in this group include: K, L, N, M, S, T, U, V, W, and X.
E
Above standard tickets are special economy tickets, denoted by the letter E. Passengers will enjoy some privileges such as complimentary meals during the flight. Therefore, ticket holders should also inquire about the benefits offered by the airline with this ticket class.
A, F, P
These three characters symbolize tickets for first class cabins. Passengers will experience the finest service provided by the airline.
C J
When purchasing business class tickets, passengers will find either C or J on their tickets. These are typically reserved for frequent flyers of the airline.
SSSS
This code is often used for domestic flights within the United States. Passengers with 4 S characters on their tickets may experience discomfort when passing through the ticket checkpoint. SSSS stands for Secondary Security Screening Selection, designed for ticket purchasers exhibiting suspicious signs.
These could be last-minute promotional tickets, one-way tickets, or cash-paid tickets. The reason may also lie in the destination of the ticket, particularly in politically unstable areas with high risks.
According to Minh Khôi/Vnexpress
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Reference: Mytour Travel Guide
MytourSeptember 28, 2018
