Miles upgrade infant
Oct 24, 2020, 10:11 am
#2
Join Date: Jun 2007
Location: SIN
Programs: CX DM, SQ KF Gold
Posts: 980
You can upgrade the underlying economy ticket for the adult, if there is availability to do so, but the infant will have to purchase a PE or business class infant ticket instead. It only makes sense, seeing as they are travelling in the same cabin as the upgraded person.