Cathay Pacific offers several ways to upgrade, whether you're using miles or paying for the upgrade with cash. Upgrades can also be requested while booking or at check-in, though seat availability is limited. Furthermore, Cathay Pacific Upgrade to Business Class could be carried out by bid options for available seats, providing an option to enjoy premium services at a cheap price. You can also use your frequent flyer miles to request an upgrade if you have enough points in your account.