Sun Country Airlines flight change policy allows passengers to modify their bookings, subject to specific conditions. Changes can be made online or through their customer service. Fees vary based on fare type, route, and the timing of the change. Passengers can often change flight dates, times, or destinations, but these changes may incur additional charges. Passengers are encouraged to review their fare's terms and conditions to understand the change fees and policies applicable to their booking. Sun Country Airlines also offers a "Bundle & Go" option that includes flexibility for changes at the time of booking, providing more convenience for travelers.
https://www.airlinesmap.com/su....n-country-airlines-f

Sun Country Airlines cancellation policy allows passengers to cancel their flights, with certain conditions and fees applying. Passengers can typically cancel within 24 hours of booking for a full refund, provided the booking was made at least seven days before departure. After this grace period, cancellations may incur fees that vary depending on the fare type and timing of the cancellation. Non-refundable fares may not be eligible for cash refunds but could receive a credit voucher. Travelers are advised to review the specific terms and conditions associated with their ticket to understand the cancellation fees and options available to them.
https://www.airlinesmap.com/su....n-country-airlines-c

Sun Country Airlines manage booking feature allows passengers to conveniently access and modify their reservations. Through the airline's website or mobile app, travelers can view and update their flight details, including personal information, seat selections, meal preferences, and additional services such as baggage or special assistance. Changes to flight dates, times, or destinations are also possible, although they may be subject to fare rules and fees, which vary based on fare type and the timing of the change. The manage booking tool enables passengers to review their itinerary, check-in online, and access important travel information, enhancing their overall travel experience.
https://www.airlinesmap.com/sun-country-airlines