In order to book an upgradable fare on United you have to buy a ticket in fare class W or higher. Here are the fare classes above W.
V
Q
H
U
E
M
B
Y
Only airlines could convolute something so simple as the ordering of the alphabet.
Related
Japan, the US, and many other developed nations are quickly
Last month Phil Fersht, CEO of HfS Research wrote about
Amazon’s foray into streaming live sporting events is about digital