Since first class space can be tough to find, it's best to start your search early and check back regularly if space is not immediately available. (upgradedpoints.com)
He told us: «As you probably know it's incredibly easy to find first class space on Korean since so few people in the U.S. either have those miles or know about the transfer process from Chase. (travelskills.com)
If you are able to book 331 days out, you might (I'll emphasize might) get lucky and find first class space. (upgradedpoints.com)