While
BA Same Day Flight Change is subject to seat availability, it is not guaranteed even if seats are open. British Airways prioritizes changes based on ticket type, fare class, and frequent flyer status. For instance, flexible ticket holders or Executive Club members with elite status are more likely to secure a change. Additionally, BA considers operational factors like aircraft load and passenger preferences when approving changes. Therefore, while available seats improve your chances, the airline reserves the right to limit same-day changes based on circumstances such as flight demand or operational capacity.