How to Upgrade British Airways flight? So upgrading your British Airways flight is a seamless process designed to enhance your travel experience. To "upgrade" your British Airways flight, begin by visiting the official British Airways website. Here, you can explore available upgrade options and check eligibility based on your ticket type. Depending on the fare rules and the class you wish to upgrade to, you can typically use Avios points or pay the fare difference. https://airlinesupdates.com/