Originally Posted by
cfischer
C and J with 50k miles is definitely possible. Books into a stupid subset of A that is hard to figure out. I’d say it is worth the effort if you’d want to spend that many miles
Thanks. UA's website doesn't have any LX exception to the rule that D on all *A airlines is an upgradeable class, so I'd assume D works too. Do you happen to know the earliest LX would release any inventory? Looking at ZRH-SIN in November/December, there are some flights with as much as A4, but all that is moot if upgrade inventory is held back until much closer to departure.