Upgrading your flight with British Airways can significantly enhance your travel experience by offering more comfort, better service, and added perks. The British Airways upgrade process allows passengers to move to a higher cabin class, such as from Economy to Premium Economy, or from Business to First. Upgrades can be requested during booking, check-in, or even at the airport, subject to availability. Travelers can pay for upgrades using cash, Avios (British Airways’ frequent flyer points), or a combination of both. The best chances for an upgrade often come with flexible tickets or frequent flyer status.