What is the difference between Avios and Tier points?

Avios and Tier points are two distinct ways to earn and redeem rewards within British Airways' Executive Club program. Avios are the currency used for booking flights, hotel stays, car rentals, and other travel-related expenses. The more Avios you accrue, the more you can save on future bookings. On the other hand, Tier points are used to determine a member's elite status within the Executive Club program. These points are earned based on the distance traveled and the fare class of the ticket purchased. Tier points contribute towards four elite tiers - Blue, Bronze, Silver, and Gold - each offering a range of exclusive benefits like priority check-in, lounge access, extra baggage allowance, and accelerated Avios earning. In summary, Avios are the points you earn and use for bookings, while Tier points determine your membership level and access to premium benefits within the Executive Club.