Avios is a travel rewards currency used by several airlines and travel partners, allowing members to earn points for flights, hotel stays, and other travel-related expenses. It is primarily associated with British Airways, Iberia, and Aer Lingus, enabling users to redeem points for flights, upgrades, and other services. Members can accumulate Avios through various means, such as flying with partner airlines, using credit cards, or shopping with affiliated retailers. The points can be redeemed for travel rewards, making it a popular choice for frequent travelers looking to save on their journeys.