Originally Posted by
bldr1k
United L is definitely not upgradeable. I returned from China a few weeks ago and business class was empty. I was in coach on an L fare with a systemwide about to expire, and they would not let me use it. They wanted 30K miles and $500 to upgrade.
Yes, correct, L is not upgradeable on UA - I was in that position a few times in the past myself; no luck other than having to purchase higher fare increase.
Originally Posted by
bldr1k
Paper certificates seem to work on any LH fare if there are open seats. LH also sorts the list based on the time you are put on, and not by fare (according to a gate agent).
That is interesting and something I have heard before. There is definitely a fare restriction on the SWU LH vouchers; additionally, on top of fare class, is there is also a 'first come, first server' rule in place?