It may take a long time to cancel a previously booked flight. On the other side, Sun CountryAirlines has made the procedure painless. Clients are assisted by airline customer service personnel throughout the process, who work hard to ensure that customers obtain a full refund. The Sun Country Cancellation Policy dictates the cost of your return and cancellation. If you need help canceling a reservation, please contact us. Our team is here to help you 24 hours a day, seven days a week and will be at your side throughout the process. Your troubles will be fixed if you only provide a few details.