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
Bill Gates writes on Yuval Noah Hattari’s most recent book
Tuesday’s Infographics brings us Apps, Education, Sitting, and more.
One thing heavily overlooked is how technology shrinks the supply