S sana New member Today at 3:27 PM #2 MileagePlus miles can be used to upgrade eligible fares. Some upgrades also require a cash co-pay. If you’re unsure whether your ticket qualifies, call United at 877•297•0699.
MileagePlus miles can be used to upgrade eligible fares. Some upgrades also require a cash co-pay. If you’re unsure whether your ticket qualifies, call United at 877•297•0699.
