Do you wish to revoke an SAS Airlines reservation? Sas refund policy If a passenger cancels within 24 hours of making a purchase and the departure date isn't more than 7 days away, they are eligible for a full refund. All tickets fall under the provisions of this rule. The benefit of cost-free cancellations is made available to the passengers throughout this risk-free period. This policy is designed to make cancellations simple and hassle-free and to satisfy customers to the fullest.