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
“What’s Next for Apple?” I’ve heard this question bantered about
No surprise we’ll see TV promotions this holiday season. TVs
