Is it a good choice to book a flight with Delta Airlines if the plans may change later on and one is indecisive? Delta Cancellation Policy is travel friendly and easily understandable, it also provides services like cancellation of the ticket over call. Delta also provides full refund on the tickets that are booked within 24 hours of purchase and no extra cancellation is charged for that. So it can be indeed a good choice to book a flight with Delta Airlines