Yes, Ethiopian Airlines typically offers a 24-hour cancellation policy. This means that passengers can cancel their bookings within 24 hours of purchase without incurring any cancellation fees, provided that the booking was made at least seven days before the scheduled departure. During this window, passengers can cancel their reservations online through the Ethiopian Airlines website or by contacting Ethiopian Airlines customer service dial 1-888-406-3009. However, it's essential to review the specific terms and conditions of your ticket purchase, as some fares or special promotions may have different cancellation policies. Additionally, policies can be subject to change, so it's wise to verify the current policy directly with Ethiopian Airlines before making any decisions regarding cancellation.