Yes, you can absolutely use Avios to pay for Iberia flights in 2026, and it is often one of the best ways to maximize the value of your points. Because Iberia and British Airways are both owned by IAG, they share Avios as a common currency. You can use your Avios in two ways: as a "Reward Flight" (where you pay a fixed amount of Avios plus a flat fee for taxes and charges) or as "Avios Part-Payment" (where you use points to reduce the cash price of a standard ticket). A major 2026 "sweet spot" is using Avios for Iberia's long-haul Business Class (Class Business) from the US to Madrid, which often features significantly lower taxes and surcharges than similar flights on British Airways through London. In 2026, the integration between the programs is seamless; you can link your British Airways Executive Club and Iberia Plus accounts to move Avios back and forth instantly at a 1:1 ratio, allowing you to "pool" your points to book whichever carrier offers the best availability or the lowest fees for your specific route.