Avelo Airlines may have had a cancellation policy that allowed passengers to cancel their bookings within 24 hours of purchase for a full refund, provided the reservation was made at least 168 hours (7 days) before the flight's departure. Beyond this window, cancellations typically incurred fees that varied depending on the fare class and the time of cancellation. Passengers were advised to check Avelo Airlines' official website or contact their customer service for the most up-to-date and specific information regarding their cancellation policy, as policies can change over time.