Upgrades to Business Class If you have already booked an Aer Lingus transatlantic economy flight on aerlingus.com, you can use your Avios to upgrade to Business Class. The amount of Avios required to upgrade your existing booking varies by route and date of travel.

In 2026, using Avios points for business class (often referred to as Club World on British Airways or Business on Iberia and Qatar Airways) remains one of the highest-value ways to spend frequent flyer miles. To do this, you can either book a "Reward Flight" entirely with points plus a cash component for taxes and fees, or use "Avios to Upgrade" a paid premium economy (World Traveller Plus) ticket to business class. Because business class seats are limited, "pro" travelers use tools like the British Airways "Reward Flight Finder" to book exactly 355 days in advance when the airline releases its guaranteed minimum of two business class reward seats per flight. In 2026, the partnership between British Airways and Qatar Airways allows you to link your accounts and spend Avios on Qatar's "Qsuite," widely considered the best business class in the world. However, be aware that "Surcharges" on long-haul reward flights can be significant, often costing $700–$900 in addition to the points, making "Avios + Money" a popular 2026 strategy for those looking to balance their points balance with cash outlays.