Originally Posted by
sethmac86
Thanks, whats an SWU?
SystemWide Upgrade. Upon qualifying for Platinum or Diamond, you can choose SWUs as a choice benefit. For flights with BE (typically), these can be used for a one way upgrade to BusinessElite from an expensive coach ticket (YBM fares). For domestic flights, they can be used on slightly lower fare buckets, though still not on LUTE classes.