Originally Posted by
channa
UA does instant upgrade fares only in select markets. That way they only offer it based on competition or where they want to vs. nationwide.
As for whether it would continue, I'm not sure. UA seems to be able to command high prices for its F cabins, whereas CO likes to discount them.
So if I had to guess, either they won't, or if they do, the B level may rise even further.
Now that UDU is in effect, no more instant y/b upgrades outside of the status windows....
What will happen to Y/B Complimentary Upgrades once Unlimited Domestic Upgrades are implemented?
As of March 19, 2010, Y/B Complimentary Upgrades will no longer be offered. They will be replaced with Unlimited Domestic Upgrades, which will be accessible for all our elite members on most United Economy purchased fares and all United Business purchased fares.
See UDU FAQ