The ticket's information can then be changed based on the preferences of the user. To change a Sun Country flight, you must have your last name and 6-digit reservation code. Although booking a flight is a fun process, unforeseen events occasionally force schedule changes. Because of this, the airline created the Sun Country Flight Change Policy. It's crucial to remember that flight adjustments depend on availability. How to Change Flight Sun Country You might need to look into alternate choices, such as altering your trip dates or taking a different airline into consideration, if the preferred alternative flights are not available. This makes it possible for customers to Change Sun Country Flight without hassle or exorbitant fees.