Sun Country Airlines offers a flexible cancellation policy, allowing passengers to cancel within 24 hours of booking for a full refund if the departure is at least 7 days away. For cancellations made beyond 24 hours, fees vary depending on how far in advance the flight is canceled: $39 for 14–59 days before departure, and $79 for 0–13 days. Non-refundable tickets typically do not offer a cash refund, but may be eligible for a travel credit. Refundable tickets can be canceled for a full refund before departure. If the airline cancels a flight or causes significant delays (6+ hours), passengers are entitled to a full refund. Additionally, purchasing a Change Fee Waiver at booking allows for one penalty-free change. Refunds are processed within 7 days for credit card purchases, and up to 20 days for cash or check payments. Passengers can manage cancellations through Sun Country’s website or customer service.

https://www.airlinesticketoffice.com/blog/sun-country-airlines-cancellation-policy/