You cannot purchase Delta Sky Priority as a standalone "add-on" in 2026. It is a premium suite of services (priority check-in, security, boarding, and baggage) that must be "earned" rather than bought outright. The most direct way to get Sky Priority is to book a premium cabin, such as Delta One, Delta Premium Select, or First Class; these tickets automatically include all Sky Priority benefits for the duration of your journey. Alternatively, you can access it through loyalty by reaching Gold, Platinum, or Diamond Medallion status in the SkyMiles program. While you can't buy the service, some travelers "buy" their way in by using the Delta SkyMiles Reserve American Express Card, which provides a "Companion Certificate" and a boost toward status, or by paying for a last-minute cabin upgrade through the Delta app. In 2026, Delta's algorithms are very strict about maintaining the "exclusivity" of these lanes to ensure they remain fast for high-value customers.